A box contains a total of 400 tickets that come in five colours: blue, green, red, yellow and orange. The ratio of blue to green to red tickets is $1: 2: 4$. The ratio of green to yellow to orange tickets is $1: 3: 6$. What is the smallest number of tickets that must be drawn to ensure that at least 50 tickets of one colour have been selected?
(A) 50
(B) 246
(C) 148
(D) 196
(E) 115