Q: Fact 1: Aplant requires nutrients to grow. Fact 2: Bamboos are vigorous, rugged plants. Given the two facts above, what requires nutrients to grow?

OPT:
(1). Conifers.
(2). stars.
(3). the sun.
(4). cows.
(5). Oak.
(6). rocks.
(7). bamboo.
(8). humans.
A:
(7).