A Pharmaceutical Company Introduces a New Headache Medication on the Market

Multiple Choice

A pharmaceutical company introduces a new headache medication on the market. They advertise the product on television and find that the percentage P of people who buy the product after t weeks satisfies the function $\mathrm { P } ( \mathrm { t } ) = \frac { 100 \% } { 1 + 37 \mathrm { e } ^ { - 0.13 \mathrm { t } } }$ What percentage buy the product after 16 weeks? Round to the nearest tenth of a percent
When necessary.

A) 17.8%
B) 21.3%
C) 14.2%
D) 19.6%