I believe the answer is C because it has multiple answers in one, and the most effective early childhood curriculum can have more than one solution.
Answer:
a
Explanation:
Cognitive stress can cause A.
The proper functioning of the body's organs is a feature of good HEALTH.
The best answer choice would be t-true.
Answer: Exhaled air consists of 78 percent nitrogen, 16 percent oxygen, 4 percent carbon dioxide and potentially thousands of other compounds.
Explanation: Does this help???