设函数 f(x) 是定义在 R 上且周期为 2 的偶函数, 当 2 ≤ x ≤ 3 时, f(x) = 5 - 2x, 则 f(-3/4) = ( )
A. -1/2 B. -1/4 C. 1/4 D. 1/2---**Question 5**
**Question Stem:**
设函数 f(x) 是定义在 R 上且周期为 2 的偶函数, 当 2 ≤ x ≤ 3 时, f(x) = 5 - 2x, 则 f(-3/4) = ( )
*Mathematical Formulas:*
f(x) is defined on R.
f(x) is periodic with period 2.
f(x) is an even function.
When 2 ≤ x ≤ 3, f(x) = 5 - 2x.
Calculate f(-3/4).
**Options:**
A. -1/2
B. -1/4
C. 1/4
D. 1/2