In a certain code language, each letter is replaced by the letter that comes two places later in the English alphabet (A → C, B → D, C → E and so on). Using this rule, how is the word "STUDENT" coded?

Introduction / Context:
This question is a simple Caesar shift cipher. Each letter in the original word is replaced by the letter that is two positions ahead of it in the alphabet. You must apply this fixed shift to every letter of the word "STUDENT".

Given Data / Assumptions:

• A → C, B → D, C → E, and so on.
• Every letter is shifted forward by exactly two positions.
• If a letter is close to the end of the alphabet, the counting wraps around after Z.
• We must code "STUDENT".

Concept / Approach:
Assign a position number to each letter (A = 1, B = 2, ..., Z = 26). For each letter in "STUDENT", add 2 to its position. Convert the resulting positions back to letters. This is repeated independently for each letter, preserving the order of the original word.

Step-by-Step Solution:
Step 1: Write the word and positions of each letter. S T U D E N T. S = 19, T = 20, U = 21, D = 4, E = 5, N = 14, T = 20. Step 2: Add 2 to each position. S: 19 + 2 = 21 → U. T: 20 + 2 = 22 → V. U: 21 + 2 = 23 → W. D: 4 + 2 = 6 → F. E: 5 + 2 = 7 → G. N: 14 + 2 = 16 → P. T: 20 + 2 = 22 → V. Step 3: Write the coded letters in order. STUDENT → U V W F G P V. So the code is "UVWFGPV".

Verification / Alternative check:
You can quickly verify the pattern using the examples A → C, B → D, C → E given in the problem statement. If you test some other random letters (like M → O or Z → B) with the same +2 logic, you will see that the rule holds consistently.

Why Other Options Are Wrong:
Options that repeat letters incorrectly, such as "UVVFGPV" or "VWVFGPV", correspond to shifting only some letters by 2 or shifting by a different amount. Only "UVWFGPV" correctly applies the +2 shift to every letter of STUDENT.

Common Pitfalls:
Some learners mix up the direction of the shift or accidentally add 1 instead of 2. Others forget to wrap around after Z in similar problems. For this particular word, no wrap-around is needed, but getting comfortable with the alphabet positions is still important.

Final Answer:
With a shift of two positions forward, "STUDENT" is coded as UVWFGPV.