Who among the following CA's has his/her office on the lowermost floor?

Study the following information carefully and answer the questions below-: Eight CA’s – Charul, Falak, Babli, Deepa, Geeta, Heena, Etti, and Aarti have their offices on eight different floors of a building XYZ where ground floor is numbered 1, first floor is numbered 2 and so on. Each of the CA’s has a different secretary. The following information is known about them. One of the secretaries is E. Charul's office is above Etti's office with a difference of one floor between them. There is a gap of two floors between the one whose secretary is D and the one whose secretary is
A. Deepa has his office on an odd numbered floor above the one whose secretary is F and the number of floor between them is one. Babli’s secretary is B and is adjacent to Aarti whose secretary is not F. Charul’s secretary is C and his office is on 6th floor. The one whose secretary is A has his office on the top floor. Geeta’s secretary is either G or H and has his office immediately below Falak but not on 1st floor. The one whose secretary is G has an office immediately above the one whose secretary is H.