True or False if you have nothing better to ou
when you make a choice, you pay no opportu
nity cost for your decision.

True

Explanation: Say that person A is having fun with books and has nothing better. He does not have any opportunity cost for anything else.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

the answer is a, salt plain