According to the web pages provided above, where did the chert form? select one: a. it formed at the bottom of the ocean where sea surface temperatures were warm. it was then transported on land by plate movements. b. it formed at the bottom of the ocean where sea surface temperatures were cold. it was then transported on land by plate movements. c. it formed at the bottom of the ocean at a time when sea level on the coast of california was much higher. when sea level fell, the chert was exposed in cliffs. d. it formed at the bottom of the ocean at a time when sea level on the coast of california was much higher. it was then uplifted on land by plate movements.