Which of these sentences is correctly written?

a. the audience howled with laughter at the outrageous antics of the actors.

b. the team was forced to forfit the game after several players were injured.

c. the students have accumalated many community service credits this year.

d. the driving student became frustrated with her instructor's interferance
.

A.The audience howled with laughter at the outrageous antics of the actors

Explanation:

Mistakes made in the other three sentences are spelling mistakes.

In sentence B, we have a verb to forfit whose correct form is to forfeit.

In sentence C we have past participle of a verb to accumulate (accumalated)  whose correct form in the given sentence would be accumulated.

In the sentence D, we have a noun interferance whose correct form is interference.

the chivalry's most valued code is morality