Which Organic Reagents Would You Need to Make 2-Ethylheptanoic Acid

Which organic reagents would you need to make 2-ethylheptanoic acid from diethyl malonate?

A) Bromoethane,1-bromopentane,sodium ethoxide,and potassium tert-butoxide
B) 3-Bromooctane and sodium ethoxide
C) 3-Bromoheptane and sodium ethoxide
D) 1-Bromopropane,2-bromopentane,sodium ethoxide,and potassium tert-butoxide
E) 2-Bromoheptane and potassium tert-butoxide