Reward<br>Hillary had poor grades in her math class. Her mother told her she needed to improve her grades. She promised Hillary a trip if she got her grades up. Hillary worked hard and got her grade up to a B. Her mother planned a trip to a local amusement park.
Can we infer the following?
Hillary's math grade was a C or lower prior to her mother's offer.

Available options:
[-] Yes;
[-] It's impossible to say;
[-] No;
The answer is: