Which of the Following Geologic Principle Is Directly Applicable to a Conglomerate

Multiple Choice

Which of the following geologic principle is directly applicable to a conglomerate rock found in the Grand Canyon that contains clasts of granite?

A) The principle of superposition states that a rock must first exist before pieces of it can be broken off and included in another rock such as a conglomerate
B) The principle of crosscutting relationships states that a rock must first exist before pieces of it can be broken off and included in another rock such as a conglomerate
C) The principle of original horizontality states that a rock must first exist before pieces of it can be broken off and included in another rock such as a conglomerate
D) The principle of included fragments states that a rock must first exist before pieces of it can be broken off and included in another rock such as a conglomerate
E) The principle of faunal succession states that a rock must first exist before pieces of it can be broken off and included in another rock such as a conglomerate