Suppose $\frac { \pi } { 4 }$ ≤ X ≤ $\frac { 3 \pi } { 4 }$

Multiple Choice

Suppose $\frac { \pi } { 4 }$ ≤ x ≤ $\frac { 3 \pi } { 4 }$ . Which of the following statements can be made about tan x?

A) tan x is positive.
B) tan x is defined.
C) If tan x is defined, then |tan x| ≥ 1.
D) tan x is not defined.
E) none of these