Which two of the following sentences from the arpicle include central ideas of the article? 1. If the transformation from chemistry to biology proves to be straightforward, the universe
might be full of life
2 These telescopes have provided beautiful images of protoplanetary disks as well as maps of
their chemical composition
3. Favored geochemical scenarios involve volcanic regions or impact craters.
4. Today, scientists are focused on understanding how chemistry on the infant Earth gave rise
to RNA and to RNA-based cells
(A)
1 and 2
1 and 4
(C)
2 and 3
(D)
3 and 4