Consider the following statements about the Force.

A. Interaction between at least two applications is required for a force to act. 

B. If the two forces act in the opposite directions the net force is zero. 

C. In order to find the net force, strength, as well as the direction of the force, is needed to be considered. 

D. Contact is needed between two objects if force is to be applied between them. 

Identify the correct statements.