Read the excerpt from the article Amazing Plants:

Some plants have unique ways of communicating with each other. When animals begin to graze on the African acacia tree, the acacia releases a gas that drifts on the wind to tell nearby acacia trees that there is danger. The acacia then releases a toxic chemical into its leaves that makes them inedible. Other acacia trees in the area do the same when they detect the danger-signal gas. Animals that continue to graze on the acacia risk becoming ill.

Select a detail from the excerpt from Amazing Plants that demonstrates that it has a cause and effect text structure.

Animals that continue to graze on the acacia risk becoming ill.
Some plants have unique ways of communicating with each other.
The acacia releases a gas that drifts on the wind to tell nearby acacia trees that there is danger.
The acacia is a tree in Africa that releases toxic chemicals into its leaves.

answer: i would say he was very determined and persistent in overcoming obstacles.

explanation:   "the magician of menlo park" as he was called, liked to tell an incident that happened when he was 8 years old and came back home crying after attending school for three months because his teacher called him "sterile and unproductive". from nowadays perspective, we can say that thomas alva edison was one of the most persistent and determined man that has ever existed. when edison was 14, he contracted scarlet fever. the effect of the fever, as well as a blow to the head by an angry train conductor, caused edison to become completely deaf in his left ear, and 80-percent deaf in the other. so as you can see he had to struggle to not so many minor issues but he always succeeded.

c is the answer because first she would blush to make the reader wonder why which they find out in the next line.

the answer to this question is unstoppable.