Question

which is the best way to complete the text? the la brea tar pits formed from crude oil that seeped through fissures in the earths ____________ fossilized remains of at least fifty - nine species of mammals from the pleistocene epoch have been found in the pits. crust, or the crust. the crust, the

Explanation:

The first option "crust, or the" creates an incorrect and awkward - sounding construction. The third option "crust, the" also disrupts the flow of the sentence. "crust. The" is the grammatically and context - appropriate choice as it separates the two main ideas: the formation of the La Brea tar pits and the discovery of fossils in them.

Answer:

crust. The