Which sentence best shows a cause/effect organization of ideas?

a) all of the grass clippings, dust, and pollen in the air caused my allergies to flare up wildly.

b) after my father has mown the yard and done the edging, we are going to go swimming at the pool.

c) my cell phone not only costs a lot of money to buy, but its monthly usage bill is also very high too!

d) while my father likes to do all the mowing, i prefer to do all the blowing of the driveway, sidewalks, and porches.

"All of the grass clippings, dust, and pollen in the air caused my allergies to flare up wildly" (A) is the sentence which presents a cause-and-effect structure.

In a sentence with this type of organisation of ideas, you should be able to identify 2 events which are linked by causation. This means that one event (the effect) happened as a consequence of the other (the cause). Here, the speaker experienced allergic reactions as a result of the grass, dust, and pollen flying around (probably after his/her father had mown the lawn).

The cause and the effect are usually linked by a pivot verb which clearly indicates the causation. In this case, it's very obvious, because the verb is "caused."

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)

2. list two reasons why fossil fuels should no longer be used as a source of energy in america.