Objective question in Mathematics

A winter resort in the Himalayas took a poll of its 350 visitors to see which adventure sport was most loved.The results of the poll were as follows.
2 liked all three
15 people liked skiing and ice skating
49 people liked to ski and snow board.
178 liked to ski
57 People liked to ice skate
154 Liked to snowboard
2 people liked to snow board and iceskate
So,
How many people like to snow board and ice skate but not ski ? a) 0 b) 2 c) 5 d) 10

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