Adecision by the federal environmental protection agency (epa) on the amount of carbon that can be emitted from a car's exhaust system conflicts with a california state law. in this situation, under the supremacy clause: ) both the decision and the law are invalidb) both the decision and the law apply concurrentlyc) california's law takes precedenced) the epa's decision takes precedence.

In this situation, under the supremacy clause: D) The EPA's decision takes precedence.

Explanation:

President Richard Nixon started Environmental Protection Agency (EPA) in United States of America. EPA is an independent agency established in the year of July 9, 1970 for environmental protection. But it came to operation only on December 2, 1970.

There was a great conflict between the federal EPA and California State law regarding the carbon emission amount from the exhaust system of car.

The survey states that the carbon emission in California in the year 2016 was about 429 million metric tons.

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail