PART A: Which statement best expresses the central idea of the text? *
Most people engage in casual acts of altruism that benefit them in some way,
however, "pure” altruism is extremely rare and few people are capable of it.
While some acts of altruism may be driven by conscious - or unconscious -
selfishness, humans are capable of "pure” altruism because of their ability to feel for
others
"Pure" altruism is a relatively new practice in humans as selflessly helping other
doesn't benefit humans in any way or help them survive.
While it may not appear to be the case at first glance, "pure" altruism and selflessly
helping others is important for the survival of humans.

The answer to this question is given below in the explanation section

Explanation:

In this question, it is asked about the central idea of the text from the two statements as given below.

In the above two statements, the question is asked about which statement expresses the central idea of the text.

The correct answer is statement 1 describe the central idea about pure altruism in the best way than statement 2. Because the statement 1, clearly define what is altruism and what is pure altruism and its linkages with human.

1 - shakespeare

2 - stephen king

3 - stephenie meyer

4 - seiichi morimura

5 - sabrina elkins

6 - sally cheney

7 - samantha hunter

8 - shelley bates

9 - sue civil-brown

10 - sylvie kurtz

the author motivation is to show the power of animal-human relationships.