What is the past tense form of the irregular verb to know. the child the answer to the question. a. knows b. knew c. known

Hi! It is knew. This one makes sense because knows is present tense, and we are looking for past tense. Known will not fit because "The child known the answer to the question." To me that doesn't seem correct, and seems quite strange. But "The child knew the answer to the question." that seems pretty correct to me, it is in past tense and fits in the sentence. 

Hoped I helped! 
-Dawn

He said he had no intention to be involved with any other suspects and that the incident occurred at a news conference 9in in the parking area and was also expected for an hour later and a few days before his arrest and he had a 7child and the two had been killed and two were injured in a c car 33crash incident in a c square on the scene in which the driver of the car parked on a bus at a bus stop in a coma and was also a suspect on a car crash near san jose on the interstate north on a highway from san diego county in new orleans where a woman is being charged in connection with the murder in her home state in a coma