In the following English idiom question, choose the alternative that best expresses the meaning of the phrase "spin your wheels", which is commonly used to describe ineffective effort that produces no real progress.

Introduction / Context:
The idiom "spin your wheels" comes from the image of a vehicle whose wheels are turning but which is not moving forward, often because it is stuck in mud, snow, or sand. In modern English usage, this phrase is used to describe situations where someone is busy, active, or working hard but is not actually achieving meaningful results. This question tests your ability to link such figurative imagery with the correct abstract meaning.

Given Data / Assumptions:

• The idiom under consideration is "spin your wheels".
• You need to choose the option that best represents its figurative meaning.
• The idiom suggests action without progress.
• The context is general English usage, often in work or study situations.

Concept / Approach:
To interpret idioms effectively, you should first understand the literal image and then consider how it is used in everyday speech. "Spinning wheels" literally describes circular motion without forward movement. Figuratively, it refers to expending energy and time but remaining stuck at the same stage. Thus, the correct answer should capture the idea of time or effort being wasted because it does not lead to advancement or results. Comparing each option with this core idea helps identify the best choice.

Step-by-Step Solution:
Step 1: Visualise a car or bike whose wheels are turning rapidly but the vehicle is stuck and not moving. Step 2: Convert that picture into a figurative meaning: working or trying hard but failing to progress. Step 3: Look at the options and locate any phrase that talks about wasting time or effort. Step 4: Option B, "Waste your time or efforts", clearly matches the idea of effort without movement. Step 5: Check that other options, such as setting an activity in motion or holding a belief, do not involve the key idea of no progress.

Verification / Alternative check:
Consider a typical sentence: "I have been spinning my wheels on this project all week and still have nothing concrete to show." If we replace "spinning my wheels" with "wasting my time and efforts", the sentence retains its meaning. If we substitute any other option, such as "setting an activity in motion" or "with great affection", the sentence becomes unnatural or incorrect. This confirms Option B as the correct meaning.

Why Other Options Are Wrong:

• Option A, "Set an activity in motion", refers to starting something, not to remaining stuck without progress.
• Option C, "A firmly held belief", describes an opinion or conviction, which is unrelated to effort or work.
• Option D, "With great affection or enthusiasm", suggests emotional warmth or passion, not wasted effort.

Common Pitfalls:
Many learners focus only on the idea of wheels turning and assume the idiom refers to movement or starting an action. They may therefore be attracted to options that mention beginning an activity. To avoid this, always remember that the key negative feature of the idiom is lack of progress. Paying attention to whether an expression suggests success, failure, or stagnation is a powerful tool for eliminating distractors in idiom questions.

Final Answer:
The idiom "spin your wheels" means to be busy but ineffective, so the correct answer is Waste your time or efforts.