Let $P_{n}$ Be the Number of People Visiting an Amusement Park on Park

Let $P_{n}$ be the number of people visiting an amusement park on the n^th day after it opens.What does $P_{10}$ represent?

A) The average number of people visiting the amusement park over the first 10 days it was open.
B) The number of days it takes for 10 people to visit the amusement park.
C) The number of people visiting the amusement park on the 10^th day after it opens.
D) The total number of people who have visited the amusement park the first 10 days it was open.