The question image/reaction scheme and option structures are missing. The prompt only shows:

• “The major product obtained in the following reaction is:”
• Options A, B, C, D are blank

So the actual reactant, reagent/conditions, and products are not available. Without the reaction scheme, the product cannot be determined from chemistry reasoning.

Step 1: What is needed to solve

To identify the major product in an organic reaction, we must know:

1. The starting compound
2. The reagent(s) and conditions
3. The structures of options A, B, C, and D

Step 2: Why the answer cannot be derived

Since all of the above are absent, there is no chemical information to analyze. Therefore, no valid step-by-step mechanistic solution can be produced.

Step 3: Comparison with stored answer

The stored correct answer is given as D, but because the reaction and options are missing, I cannot independently verify that choice.

Please provide the reaction image or type the reaction and the option structures, and I can solve it fully.