Eight persons, Amit, Bharani, Chetan, Dhruv, Sohan, Tariq, Umran and Vinay, sit in two parallel rows with four persons sitting in each row facing one another. Amit and Bharani are not in the same row. Sohan sits to the immediate left of Chetan in the same row but opposite to Tariq. Umran and Bharani have only two persons sitting between them. Amit and Sohan have only one person between them.
Which of the following pairs sit diagonally opposite to each other?