Both high wing innit. The tailplane and elevator would be in the downwash of the wing and in line with the engine on a high wing / low tail design.
The 146 is an odd fish anyway; 4 little engines instead of 2 larger ones!
The 757 is perhaps one of the best looking, if not the best looking, of 'modern' airliners. With a T tail it looks very odd! (If it looks right, it flies right. Usually!).