(1 point) Which of the following are first order linear differential equations? A. xy-4y = xбex dx dP B. +2tP=P+ 4t - 2 dt dy C. sin(x) - 3y = 0 dx 2 dy D. + cos(x)y = 5 dx d² y E. + sin(x) dx = cos(x) dx2 dy F. = y² - 3y dx