On the number line below, P represents a number. What is the value of the opposite of that number? A number line from negative 4 to positive 4 in increments of 1 over 4, with all whole numbers alone labeled is shown. Put point P at the sixth tick mark to the right of 0.

1 and 2 over 4
2 over 4
negative 2 over 4
negative 1 and 2 over 4