The instrument used to determine the age of a tree

Q. The instrument used to determine the age of a tree
A. Abney’s level
B. Pressler’s borer
C. Relascope
D. Altimeter
Answer: Pressler’s borer

A. Abney’s level
B. Pressler’s borer
C. Relascope
D. Altimeter
Answer: Pressler’s borer