Answer:
Its A
Step-by-step explanation:
Because most of his employees are making close to the lower amount of around 40-45 thousand. But he employs some people at around 65-70 thousand which brings the average up to 52,000
A comlex fraciton is a fraction with another fraction in either the denomenator or the numerator (yo dawg, I heard you like fractions...)
example

or

or