All of the following are benefits (the "pro's") of having a credit card, EXCEPT which one?
a.
Credit cards are portable, and you won't have to carry as much cash.
b.
Credit cards are convenient to use, and you can buy now and pay later.
c.
Credit cards make it very easy to take on revolving debt.
d.
Credit cards are very helpful for emergency purchases.
e.
Credit cards can help build your credit rating if used responsibly.