B. Twisting is a non locomotor skill.
False there are plent of examples on google examples of acronyms.
For this case we have that by definition, a linear function is of the form 
If we have that a and b are linear functions, then they are of the form:

If we multiply them we have: (Applying distributive property)

That is, we get a quadratic function.
Answer:

the correct answer for this question would be false