People who suffer from migraines are often advised to avoid ...

[nramada]

People who suffer from migraines are often advised to avoid things that can precipitate an attack, such as chocolate and red wine.
 
  a. prevent
 
  b. trigger
 
  c. follow
 
  d. delay

Question 2

A thesaurus is most useful for finding a word's
 
  a. origin.
 
  b. definition.
 
  c. synonyms.
 
  d. part of speech.

[ryrychapman11]

Answer to Question 1

b

Answer to Question 2

c

[nramada]

Thanks for the timely response, appreciate it

[bdobbins]

TYSM