Answer:
a. I have corrected the discrepancy in the Taylor account.
Explanation:
When expressing oneself the message needs to be concise and pass accross the intended idea in as few words as possible.
The second option (As per your suggestion, I have corrected the discrepancy in the Taylor account) is wordy and we can do without the first part of the sentence (As per your suggestion).
The selected option avoids long lead-ins, is written in an active voice, and has a conversational tone.
