need answer... PLZ PLZ

Answer:
Option A is correct.
Step-by-step explanation:
The credit limit is $6000
New balance after the transactions = $ 3604.50
Available credit on Nikki's card = credit limit - New balance after the transactions
Available credit on Nikki's card = $6000 - $ 3604.50
Available credit on Nikki's card = $ 2395.50
So, Option A is correct.