The answer is D , all of the above
Answer:
D. Washing your hands before eating.
Explanation:
Option a, b and c are examples of not practicing proper hygiene and they increase the chances of you getting diseases. Option D is the only example that practices proper hygiene.
B is the most efficient answer
The correct answer is
Stasis
Population becomes isolated
After rapid change in isolated population
Reintroduction
The time when you can't see any of the moon at all is called "New Moon".
14.77 days later, the phase is "Full Moon".