Correct option is A
Option (a) contains an error.
Error Explanation: The phrase
"doesn’t seeming" is grammatically incorrect.
After the auxiliary verb
"doesn’t", we use the
base form of the verb, i.e.,
"seem" and not
"seeming".
Correct sentence: Age doesn’t
seem to diminish our capacity to speak, write and learn new things.
Grammatical rule used:
When using
does/doesn't in a sentence, it should be followed by the
base form of the main verb.
Example:
✅ She doesn’t
like spicy food.
❌ She doesn’t
liking spicy food.