30 POINTS WILL GIVE BRAINLIEST !!

c

Step-by-step explanation:

4*4=16

4*8=32

4*8=32

16+32+32=80

80*2=160

Option c is 160

160 cm^2 is the total surface area

Step-by-step explanation:

I see 2 identical sides, a top and bottom of the same size, and a front and back of the same size.  So, to find the total surface area, we find the individual area of one side, one top and one front, add them together and multiply the sum by 2:

front:  (4 cm)(8 cm) = 32 cm^2

side:   (4 cm)(8 cm) = 32 cm^2

top:     (4 cm)(4 cm) = 16 cm^2

Sum:                           80 cm^2

Multiply this by 2:       160 cm^2 is the total surface area.