What element in the excerpt from life on the mississippi most suggests that it is a realist text?
a. it has dialogue that is both witty and believable.
b. it contains well-rounded and diverse characters.
c. it concerns itself with the trials of a daily occupation.
d. it pays close attention to the physical details of a setting.

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.