Which sexually transmitted disease is most likely capable of causing death if it is not treated?

The most prominent physical gender difference emerging during adolescence is

A. increase in sitting height among boys B. increase in standing height among boys C. decrease in biacromial/bicristal ratio among girls D. increase in biacromial/bicristal ratio among girls

For a child's behavior to be called prosocial, it should be a self-benefiting social behavior

Indicate whether this statement is true or false.