What happens next in this paragraph?

How to understand credit card bills 
Consider what a credit card statement is. 
In simplest terms, your credit card statement provides a summary of what you've done with your card for a specified billing period. Any transactions or changes regarding your account will be included.
Possible answers:
a). A credit card statement must show you paid off your credit card balance in full at the end of each billing cycle. Look for statements that tell you how much you owe.
b). Write down any transactions you've made on that credit card, especially the number of purchases you've made on that card. For example, if you balance a single grocery bill, there are no purchases that can be made on that month's bill.
c). A credit card statement does not include any receipts or other documentation of transactions; instead, it is held in a bank account with its credit card information included. Record accounts at which you've used your card or use your credit card cash from another account.
d). Note that the specific days of the billing period will always be included. For instance, any purchases or other transaction after the final day of the billing period will be on the following credit card statement.
d).