Which choice best summaries the passage?

Which is these sentences can be deleted from the first paragraph sentence 4 sentence 2 sentence 5 sentence 3

What term refers to the initial training given to all new employees?

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.