Which of the following sentences is correct in standard English for expressing simple happiness about starting a programme?

Introduction / Context:
This question examines your understanding of the adverbs very and too when they modify adjectives such as happy. In everyday English usage, these words express different shades of meaning. You must select the sentence that correctly expresses simple positive emotion about starting a programme in a natural and standard way.

Given Data / Assumptions:
- Option a uses very happy. - Option b uses too happy. - The context is a person expressing enthusiasm about starting a program or project. - We are looking for a sentence that does not introduce unintended negative meaning.

Concept / Approach:
In standard English, very is used to intensify an adjective positively, without implying any problem. Saying very happy simply means highly happy. On the other hand, too often carries the idea of excess, usually suggesting a negative result or limitation, as in too tired to work or too late to catch the bus. When someone says I am too happy to start this program, it suggests that the happiness somehow prevents starting the program, which is not the intended simple positive meaning. Therefore the sentence with very happy is the correct choice for normal expression.

Step-by-Step Solution:
Step 1: Consider the intended message: the speaker wants to say that starting the programme makes them very pleased or excited. Step 2: Look at option a: "I am very happy to start this program." This reads naturally as a positive statement of enthusiasm. Step 3: Very here works as a straightforward intensifier of happy and does not introduce any negative or contradictory implication. Step 4: Now examine option b: "I am too happy to start this program." In standard usage, too happy would normally mean so happy that starting the programme is difficult or impossible, which is illogical in this context. Step 5: The structure too happy to start suggests that the level of happiness prevents the action of starting, which is not what we usually want to convey. Step 6: Because option b misuses too, it cannot be considered a correct sentence to express simple enthusiasm. Step 7: Since option a is correct and option b is incorrect, the choice stating that both are correct is also wrong. Step 8: Therefore, the only correct sentence among the options is option a.

Verification / Alternative check:
Think of similar examples. It is natural to say I am very glad to meet you or I am very excited to join this team. In contrast, I am too glad to meet you sounds strange and would normally require a second clause showing a problem. The pattern with too usually expresses excess leading to difficulty: for example, I am too shy to speak in public. Comparing these patterns confirms that very happy is the appropriate choice in the sentence about starting the program.

Why Other Options Are Wrong:
Option b: Misuses too and implies a kind of excess that does not fit the context of simple happiness. Option c: Claims that both a and b are correct, but b is not acceptable in standard usage. Option d: States that none are correct, which is false because option a is perfectly acceptable.

Common Pitfalls:
Learners sometimes think too is simply a stronger form of very and use it whenever they want extra emphasis. In reality, too carries a negative or limiting sense most of the time. This can cause awkward sentences in exams and formal writing. When you want to show strong but positive emotion without any problem implied, very is usually safer than too. Keeping this distinction in mind helps in many vocabulary and usage questions.

Final Answer:
The sentence that correctly expresses simple happiness is "I am very happy to start this program."