When Students Keep a Written Record of Their Own Desirable

When students keep a written record of their own desirable and undesirable behaviours, then:

A) desirable behaviours increase in frequency, but undesirable behaviours remain the same.
B) undesirable behaviours decrease in frequency, but desirable behaviours remain the same.
C) desirable behaviours increase and undesirable behaviours decrease.
D) such record-keeping has little effect on behaviour.