Study the following information carefully and answer the questions given below:
A, B, C, D, E, F and G are travelling in three different vehicles. There are at least two passengers in each vehicle – I, II and III and each vehicle has passengers of both the sexes. There are two engineers, two doctors and three teachers among them. C is a lady doctor and she does not travel with the pair of sisters A and F. B a male engineer, travels with only G, a teacher in vehicle I. D is a male doctor. Two persons belonging to same profession do not travel in the same vehicle. A is not an engineer and travels in vehicle II.
How many lady members are there among them?
A Three B Four C Three or Four D Data inadequate E None of these