According to the passage, murder occurs most frequently in the months of ______.

A．The woman thinks the maid was beautiful.
B．The woman thinks the salesman exaggerated his part.
C．The woman thinks the salesman was realistic.
D．The woman thinks the salesman was not dramatic enough.

A．The effects of noise on the quality of life.
B．The role of air traffic restrictions.
C．The production of quieter engines.
D．Tile economic aspects of noise reduction.