Why Is the C-F Bond Significantly Stronger Than Either the C-C

Why is the C-F bond significantly stronger than either the C-C or the F-F bond? Please select all that apply.

A) C-F is strengthened by electrostatic interactions.
B) C-C is very weak due to a number of lone pairs.
C) F-F is very weak due to a number of lone pairs and a very short bond.
D) Bonds between atoms that are different tend to be stronger than bonds between atoms that are the same