A circle the center of the circle is the origin and the radius of the circle is 1. The point $P$ on the unit circle has the coordinates $(x, y)$. What is the value of $\sec \theta$ ?
Choices:
A:$\frac{1}{x}$
B:$x$
C:$y$
D:$\frac{1}{y}$
Please directly answer the question and provide the correct option letter, e.g., A, B, C, D.
Question: A circle the center of the circle is the origin and the radius of the circle is 1. The point $P$ on the unit circle has the coordinates $(x, y)$. What is the value of $\sec \theta$ ?
Choices:
A:$\frac{1}{x}$
B:$x$
C:$y$
D:$\frac{1}{y}$
Please first conduct reasoning, and then answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
Question: A circle the center of the circle is the origin and the radius of the circle is 1. The point $P$ on the unit circle has the coordinates $(x, y)$. What is the value of $\sec \theta$ ?
Choices:
A:$\frac{1}{x}$
B:$x$
C:$y$
D:$\frac{1}{y}$