the hangul filler is an empty unicode symbol. you can use it to submit empty questions/answers. copy and paste inside the paranthesis: (ㅤㅤㅤ)

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

Which behavior of an expectant mother is unhealthy

Once you have come to a decision, you should "go" over it and