Answer:
A. Speaking of making plans, I would love to go to the pool this weekend.
Step-by-step explanation:
Option A is the correct answer.
It is the sentence that is punctuated correctly.
From the selected option, we can see that after the phrase "speaking of making plans" there is punctuation which causes a pause before the speaker went ahead to explain/reveal what he will love to do during the weekend.
The positioning of the comma in option A is the correct form of punctuation.