Use the Following to Answer the Questions Below

Multiple Choice

Use the following to answer the questions below:
Consider taking random samples of size 100 from Population A with mean 85 and standard deviation of 15 and random samples of size 60 from Population B with mean 78 and standard deviation 12.
-How many degrees of freedom should be used when conducting inference for with samples of this size?

A) 99
B) 100
C) 59
D) 60