:-) :-) :-) :-) :-) :-) :-) :-) :-)

I loike trains, and those look like trans :

Explanation:

:):):):):):):):):):):):):);)\

:0:

:

A.

Explanation:

If I remember this right, I think the frequencies are how high the waves are. If what I remember is true, then the answer is a. I would check to make sure before answering though