HELLO :) PLEASE ANSWER FOR BRAINLIEST

Complete the square to transform the expression x^2 + 4x + 2 into the form a(x − h)2 + k.

A. (x + 2)2 − 2

B. (x + 2)2 + 2

C. (x + 4)2 − 2

D. (x + 4)2 + 2

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint