Final answer:
The correct prediction for the Afar region is that the continental crust will become thinner over time due to rifting, resulting in the formation of new landmasses.
Step-by-step explanation:
Based on the information provided about continental rifting, the events that are likely to occur in the Afar region are the following: First, the continental crust in the region will get thinner over time as tectonic forces pull the continent apart. This does not imply that the continental rift will grow narrower; instead, it suggests that new landmasses may eventually form as the continent splits. Thus, the correct option, based on scientists' descriptions, is that (1) the continental crust will get thinner over time.