As a branch of linguistics, the study that is concerned with the internal structure of words and the rules by which words are formed is called

A．To encourage them to be confident.
B．To support them financially.
C．To urge them to be dependent.
D．To keep an eye on their emotions.

A．Employees are in face of fierce competition.
B．Salaries of engineering grads are lower than the average.
C．Starting salaries have been increased this year.
D．There might be another hiring surge next year.