42. What is the main idea of these two paragraphs?
(A) Friday the 13th is truly a very unlucky day.
(B) People are usually more cautious on Friday the 13th.
(C) There is no evidence that accidents are more likely to happen on Friday the
13th.
(D) Superstitious beliefs about Friday the 13th mainly result from historical and
folk traditions.
(E) Friggatriskaidekaphobics are usually more cautions on Friday the 13th.