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Ⅱ.The Penick parents do not ride together.
Ⅲ. The Henderson parents do not ride together.
(A)Ⅰonly
(B)Ⅱonly
(C)ⅠandⅡonly
(D)Ⅰand Ⅲ only
(E)Ⅰ,Ⅱ, and Ⅲ
18. On one of the days of the trip, while the canoeists go over rapids, Jerome chooses to go hiking with two of the children rather than canoeing, and there are six people in the canoes, two in each canoe. If the other conditions still hold for the canoeists, which of the following could be a list of the children in the canoes?
(A) Dan, Kate, Susan
(B) Dan, Kate, William
(C) Dan, Tommy, William
(D) Dan, William. Susan
(E) Susan, Tommy, William
Questions 19-22
M, N, O, P, Q, and R are perfectly straight one- way streets.
Each street in this group is parallel to two of the other streets in the group, with no intervening parallel streets other than streets in the group.
Each street in the group intersects three of the other streets in the group.
Traffic moves in opposite directions on alternate streets.
P and R intersect.
O and Q are parallel.
Traffic moves in the same direction on R and N.
Traffic moves south on M.
Traffic moves east on two of the streets.
19. Which of the following streets intersect?
(A) M and R
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