Imagine two rocks. Under enough stress, rock A will experience plastic strain, whereas rock B will experience brittle strain. Which of the following statements about rocks A and B is true?
-Rock A will experience elastic strain before plastic strain sets in, but rock B will experience only brittle strain.
-Both rock A and rock B will experience elastic strain before plastic or brittle strain sets in.
-Rock B will experience elastic strain before brittle strain sets in, but Rock A will experience only plastic strain.
-The yield strength of rock B is lower than that of rock A.
-The yield strength of rock A is lower than that of rock B.