the (drug and control) are the variable that you will change throught the conducted investigation.
It is called the lines terminal is or pelvic brim
C is most likely your answer (my bad if I am wrong)
Answer:
cancellation
Explanation:
A factor in the numerator is <em>cancelled by dividing it</em> by the same factor in the denominator. The quotient is 1, the multiplicative identity element.
