What common items used today were invented during the war because of a need to replace rationed items?

A. Antibiotics
B. Synthetic fabrics
C. Color televisions
D. Computers

The answer is: letter B, synthetic fabrics.

Explanation:

"World War II" didn't only bring devastation to many people but it also affected the people's everyday wear or fashion. Many items fell short during this time thus, rationing as well as controlling the prices of goods became solutions to the problem.

Since leather fabrics were also part of those items that were rationed, people found a less expensive way to continue enjoying the fashion world. Synthetic fabrics or man-made fabrics were made. These fabrics are still being made until today. This allowed people to continue enjoying a similar style of fashion (since the government controlled the styles that were allowed).

Thus, this explains the answer.

the answer is a) high entry costs