Asian elephants can live up to 80 years or longer on average; African elephants, 65 years on average. A research institute plans to select a group of 5 Asian and 5 African elephants to determine how climate change affects the lifespan of the two types of elephants. The number 80 is a ______ and the number 65 is a _________.

A. statistic, statistic

B. parameter, statistic

C. statistic, parameter.

D. parameter, parameter