The topic sentence a) sums up the main idea of the paragraph. ...

[Capo]

The topic sentence
 
  a) sums up the main idea of the paragraph.
  b) grabs the reader's attention dramatically.
  c) is usually the second or third sentence.
  d) tells the topic, but not the main idea.

Question 2

Clustering can help you
 
  a) get sentences down on the page.
  b) expand your topic into a broader topic.
  c) narrow your topic to a more specific topic.
  d) improve your grammar.

[pikon]

Answer to Question 1

a

Answer to Question 2

c

[Capo]

Thanks for the timely response, appreciate it

[LVPMS]

Great answer, keep it coming