​How Can You Tell Whether a Fat Contains Primarily Saturated

​How can you tell whether a fat contains primarily saturated or unsaturated fatty acids?

A) All plant oils are unsaturated because they are liquid at room temperature.
B) Solid fats that melt at a high temperature are unsaturated.
C) ​Oils that remain liquid at room temperature are primarily unsaturated.
D) ​Beef fat is considered unsaturated because cattle eat only plant foods.
E) ​All fat that is solid at low temperatures is unsaturated.