1) Vaccum your house weekly.
2) Don't drop food crumbs on the floor. If you do, then sweep it immediately.
3) Clean your backyard well too, remove the weeds etc.
4) Wash the floors with water & soap weekly too.
Answer: C.It shows the writer's credibility
Explanation: Just did it.
The author's prior knowledge with some opinions from others
Answer:
Don't start sentences with how or but. it needs commas. and some of them sound like incomplete sentences/ thoughts. Attach some of the sentences together.
Explanation:
