Solve the Problem $x$ Years Can Be Described By $\mathrm{A}(\mathrm{x})=100 \mathrm{e}^{-0.01679 \mathrm{x}}$

Multiple Choice

Solve the problem.
-Suppose the amount of a radioactive element remaining in a sample of 100 milligrams after $x$ years can be described by $\mathrm{A}(\mathrm{x}) =100 \mathrm{e}^{-0.01679 \mathrm{x}}$ . How much is remaining after 194 years? Round the answer to the nearest hundredth of a milligram.

A) 0.04 milligrams
B) 2597.83 milligrams
C) 325.73 milligrams
D) 3.85 milligrams