Please help me! How do I do this?

For the graph of the function f(x)-2 x (1/3)^x+4, find each transformation, stretch, compression and/or reflection of the function f from its base graph, g(x)=(1/3)^x Also find the Domain D, The Range R and the asymptote of the graph of F.

A) left 4, vertical stretch by a factor of 2, reflection about the y-axis

D: (–∞, ∞)

R: (–∞, 0)

y = 0

B.) left 4, vertical stretch by a factor of 2, reflection about the x-axis

D: (–∞, ∞)

R: (–∞, 0)

y = 0

C.) left 4, vertical stretch by a factor of 2, reflection about the x-axis,

D: (–∞, ∞)

R: (0, ∞)

y = 0

D.) eft 4, horizontal stretch by a factor of 2, reflection about the x-axis

D: (–∞, ∞)

R: (–∞, 0)

y = –4