If given a variable:

double PI $=3\mathrm{.}14159$;

What does the following do$?$

cout $$ int $($PI$)$ endl;

Converts PI to an integer and places the result, $3,$ in the output stream.

Multiplies PI by $1$ and places the result, $3\mathrm{.}14,$ in the output stream.

Produces a syntax error.

Sends the string "int$($PI$)"$ to the screen for display.