For Small Angle Approximations
A)the Angle Must Be 10 $\degree$ Or Less
B)the Angle Must Be 10 Radians or Less

Multiple Choice

For small angle approximations

A) the angle must be 10 $\degree$ or less
B) the angle must be 10 radians or less
C) the angle must be 1 $\degree$ or less
D) the angle must be 1 radian or less
E) the angle must be 45 $\degree$ or less