Seven people, Ankit, Gaurav, Kishan, Sita, Tanu, Uma and Vinod, are sitting in a straight row, facing the north.

Seven people, Ankit, Gaurav, Kishan, Sita, Tanu, Uma and Vinod, are sitting in a straight row, facing the north. Only two people sit to the right of Uma. Only two people sit to the left of Kishan. Only two people sit between Uma and Gaurav. Only three people sit between Kishan and Vinod. Tanu is not an immediate neighbour of Uma. Sita sits to the right of Uma. Who sits to the 4th to left of Uma?

(a)          Ankit

(b)          Sita

(c)           Kishan

(d)          Tanu