The correct option is C Reproductive tract infections
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Diseases or infections which are caused by sexual contact are called sexually transmitted diseases (STD) or venereal diseases (VD) or reproductive tract infections (RTI).
Congenital disease is any inherited disease which is present at or before birth of an individual.
e.g. Down's syndrome, congenital heart disease, etc.
Deficiency diseases occur due to lack of one or more nutrients in the body over a long period of time.
e.g. Scurvy, osteoporosis, etc.