Diaphragms are contraceptive device used by the females. Choose the correct options from the statement given below:
a. They are introduced into the uterus
b. They are placed to cover the cervical region
c. They act as physical barrier for sperm entry
d. They mainly function as spermicidal agents
| A. |
a & b |
| B. |
b & c |
 |
| C. |
a & c |
| D. |
c & d |