This Multiple Choice icon is made in Material Design style developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,300 icons, all in the same style and quality.
The image is of three squares that are horizontally lined up. They are not touching each other. To the right of the squares are horizontal lines of the same length. The top and bottom squares are filled in. The middle square is blank.