Teacher:In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Teacher: Now, understand the problem? Solve this instance: Fact1: radioactive dating is used to determine the age of fossils, Fact2: Geologists use fossils to determine the age of the rock layer that it was found in., Question: What do geologists use to determine the age of rock layers? (A) Chemical dating (B) Mechanical dating (C) Non radioactive dating (D) blastoids (E) single-celled organisms (F) Seismometer (G) Radioactive dating (H) an electron microscope
Student:
G