We owe our access to Vincent van Gogh's thoughts and feelings ...

[CBme]

We owe our access to Vincent van Gogh's thoughts and feelings about many of his paintings to:
 
  A. the Van Gogh Research Society.
  B. the research of Dorothy and Herbert Vogel.
  C. the many letters he wrote to friends and relatives.
  D. his autobiography.
  E. None of these answers are correct.

Question 2

Which are methods used by prehistoric painters?
 
  A. Animal fats and pigments were mixed together.
  B. Reed brushes were used.
  C. Powdered pigments were blown through hollow reeds.
  D. All of these.
  E. None of these answers are correct.

[jomama]

Answer to Question 1

C
The letters reveal a sensitive, intelligent artist pouring out his thoughts and were an important documentation of his life and art.

Answer to Question 2

D
Prehistoric painters used materials that were accessible to them.

[CBme]

Thank you

[jomama]

No problem