The "law" of faunal succession:
a. was developed by theoretical biologists to explain evolution.
b. was passed in congress to dictate equal teaching of different theories of origins.
c. was developed by an engineering geologist to aid in construction projects.
d. requires that evolution occurred.
e. requires that evolution was a catastrophic process.

Option D, Requires that evolution occurred

Explanation:

As per the law of Faunal Succession, the strata in a sedimentary rocks consists of fossils of different time period that are arranged one over the other in a vertical manner. This shows that each vertical layer consist if fossils that have evolved from the previous fossilized species.

This was found by  geologist William Smith who later used this vertical strata for determining the age of rock and sediments based on the rock of fossils.

Hence, Option D is correct

b, acidosis

acidosis is when the human body attempts to return the bloods ph levels back to normal when the blood is acidic