Which phrase best describes f(x) graphed on the on the coordinate plane below?

f(x) is an odd function
f(x) is an even function
f(x) is both odd and even
f(x) is niether odd nor even

A3cm×3cm\greend{3\,\text{cm} \times 3\,\text{cm}} 3cm×3cm start color greend, 3, space, c, m, times, 3, space, c, m, end color greend rectangle sits inside a circle with radius of 4cm\blued{4\,\text{cm}} 4cm start color blued, 4, space, c, m, end color blued . what is the area of the shaded region? round your final answer to the nearest hundredth.