The ratio of 3 to 4 can be written in all the following ways except

a) 4/3
b) 3/4
c) 3: 4
d) three-fourths

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a