Differential Equations: Problem 3 Previous Problem Problem List Next Problem (1 point) Which of the following functions are solutions of the differential equation y" + 2y + ly = 0? O A. y(x) = ex OB. y(x) = ex c. y(x) = -x OD. y(x) = xex OE. y(x) = xe-x OF. y(x) = 0 OG. y(x) = -ex