Step 1: Understanding the Question:
• The question asks for the sequence of Gaganendranath Tagore's artworks by execution year.
Step 2: Detailed Explanation:
• As per the NTA final answer key, the accepted sequence is A, B, C, D, i.e. Portrait sketches, Puri landscapes, Chaitanya series, Caricatures.
Step 3: Final Answer:
The correct option is (D) A, B, C, D.