Question $4$ of $25$ :

Select the best answer for the question.

What type of loading on a simple beam does the shear diagram between points a and b in Examination Figure III represent?

A$.$ A uniform load distributed from $c$ to $d$

B$.$ A concentrated load at midspan and a uniform load distributed from $a$ to $b$

C$.$ Two equal uniform loads distributed from $a$ to $c$ and from $d$ to $b.$

D$.$ Two equal concentrated loads at $c$ and $d.$