Study the given bar-graph and answer the question that follows.
A company provides five different products. The sales of these five products (in 1000 number of packs) during 2019 are shown in the bar-graph.

What is the approximation ratio of sales of product A to product E in 2019?

A

1 : 2

B

1 : 3

C

2 : 3

D

2 : 1