Answer:
The description of a cross section of a right cylinder that is neither parallel nor perpendicular to the base is (an);
Ellipse
Explanation:
The given question is presented as follows;
Which could be the description of a cross section of a right cylinder that is neither parallel nor perpendicular to the base;
The options obtained from an online source (PSD) are;
Circle
Ellipse
Rectangle
Triangle
The cross section of a right cylinder that is parallel to the base is in the shape of a circle
The cross section of a right cylinder that is perpendicular to the base of the cylinder is in the shape of a rectangle
The cross section of a right cylinder that is neither parallel nor perpendicular to the base of the cylinder is in the shape of an ellipse which is a form of an oval shape.