Answer:
D. Both A and B above are true
Step-by-step explanation:
A. The unemployment rate equals 4.4%
The unemployment rate for a country is the division between the Unemployed ( 7.1 million) and the Labor force (160.2 million):

That is true.
B. The labor force participation rate is 62.9%
The participation rate is simply what percentage represents a number versus the total, in this case, the percentual participation of the labor force in the working age population:

That is true.
C. The labor force is 254.6 million
This is false, the labor force is 160.2 million, the working age population is 254.6 million.
So the correct answer is D.