I know that B applies, and D might apply assuming it means certain materials can pass through and not all materials can pass through.
The answer is
A. Hand washing
The answer is D, embraces challenges.
Answer:
Explanation:
Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.
