P, Q, R, S, and T reside in a 5-storeyed (Ground + 4) building, and each of them resides on a separate floor. To know who resides on the ground floor, which of the given statements are sufficient/insufficient?
P, Q, R, S, and T reside in a 5-storeyed (Ground + 4) building, and each of them resides on a separate floor. To know who resides on the ground floor, which of the given statements are sufficient/insufficient?
(A)