WHEN MOBILE PHONES FIRST CAME OUT, THEY WERE NOT ONLY BULKY, BUT A...

30. When mobile phones first came out, they were not only bulky, but also expensive.

A.

Few people could afford the original mobile phones because they were so expensive.

B.

At the time they were introduced, mobile phones were big and cost a lot of money.

C.

The first mobile phones were inefficient as well as being difficult to use.

D.

Nowadays, almost everyone has a mobile phone because they are so small and cheap.