WHAT DOES THE AUTHOR SAY ABOUT CRO- MAGNON PAINTINGS OF HANDS

28. - DAP AN ON THI DAI HOC 57
DAP AN ON THI DAI HOC 57

28. What does the author say about Cro- Magnon paintings of hands?

a. Some are not very old b. It is unusual to see such paintings

c. Many were made by children. d. The artist were mostly right- handed.