How many signals would you expect to find in the 1H NMR spectrum of each of the

Question:

How many signals would you expect to find in the 1H NMR spectrum of each of the following compounds?M
(a) 1-Bromobutane
(c) Butane
(b) 1-Butanol
(d) 1, 4-Dibromobutane
(e) 2, 2-Dibromobutane
(g) 1, 1, 4-Tribromobutane
(f) 2, 2, 3, 3-Tetrabromobutane
(h) 1, 1, 1-Tribromobutane