Studies suggest babies cry mainly because of

There can be many main reasons of why babies cry such as:

1) Hungry (when they are hungry)

2) Pain ( When they feel pain)

3) Sleeplessness ( When they want to sleep)

4) Fear (When they feel fear)

answer; /// i do believe the correct answer is (c) public education;

the best and most correct answer among the choices provided by your question is the second choice.

the sentences  articulate the philosophical concept of altruism.

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