GCE Geography 1990 Question 16

Which of the following combinations of processes is associated with the formation of a rift valley? (I) Tension or compression forces (II) Resistance and faulting (III) Emergence of the middle crust of rocks (IV) Submergence of the middle crust of rocks

1. A.I, II and III only
2. B.I, II and IV only
3. C.I, III and IV only
4. D.II, III and IV only
5. E.I and III only