Writers try to substantiate their opinions by a. giving ...

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Writers try to substantiate their opinions by
 
  a. giving reasons or examples.
 
  b. describing personal experiences.
  c. presenting statistics.
 
  d. all of the above.

Question 2

At present, researchers at almost all universities and pharmaceutical and biotech companies have agreed to follow the federal regulations governing research as a standard in conducting experiments on human beings.
  An antonym for regulations is
 
  a. deregulation/lawlessness c. control/oversight
 
  b. adjustment/arrangement d. governance/management

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Answer to Question 1

d

Answer to Question 2

a. deregulation/lawlessness