Which of the following can increase your credit card’s apr?
apaying the minimum
bmissing a credit card payment
cpaying off the full balance
dcashing in on rewards points

A: If you pay the minimum then you'll just get more interests. "No" Also, paying the minimum just means: You are paying a small portion of your credit card debt.
B: Missing a credit card payment will increase your credit card APR since you'll be fined depending on the amount of the bill.
C: That won't change your APR.
D: Reward points isn't physical cash that will change your APR.

B: Missing a credit card payment

The APR of your credit card will be increased if you show that you're not responsible for paying all of bills/credit.
Some good guidelines to follow would be:
- Know your rates
- Always pay the full balance
- Know your credit
- Consider making a forbearance plan and/or a debt management plan, also known as credit counseling. But go to a well known company. It might cost you more, but you can easily be scammed if you go to a more sketchy business.