To compare the lightning-fast genius of playwright Tom Stoppard with

The correct idiom is "To A is to B"


(A) To compare the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is to compare the exquisite bouquet of a fine wine with that of ordinary grape juice.

(B) To compare the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is comparing the exquisite bouquet of a fine wine with that of ordinary grape juice.

(C) Comparing the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is to compare the exquisite bouquet of a fine wine with ordinary grape juice.

(D) Comparing the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is like comparing the exquisite bouquet of a fine wine with ordinary grape juice.

(E) To compare the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is to compare a fine wine’s bouquet with ordinary grape juice’s bouquet.

therefore we can eliminate options B and C

(A) To compare the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is to compare the exquisite bouquet of a fine wine with that of ordinary grape juice.
Is the correct option!

(D) Comparing the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is like comparing the exquisite bouquet of a fine wine with ordinary grape juice.
there is a comparison error in this option, we cannot compare the bouquet of a wine with grape juice
we can compare wine with grape juice or the bouquet of wine juice with the bouquet of grape juice

(E) To compare the lightning-fast genius of playwright Tom Stoppard with the pedestrian efforts of some of his contemporaries is to compare a fine wine’s bouquet with ordinary grape juice’s bouquet.

in the option in the first part of the sentence we use the structure X of Y therefore its parallel to have that pattern follow in the rest of the sentence