In the case of a ‘test-tube baby’?

a) fertilization takes place inside the test tube
b) development of the baby takes place inside the test tube
c) fertilization takes place outside the mother’s body
d) unfertilized egg develops inside the test tube

Ans– c

Explanation–  A test tube baby is the term that refers to a child that is conceived outside the woman’s body. The process is also referred to as “in vitro” (outside the body) fertilization