Final answer:
Flexion is a type of angular movement that occurs when the angle between the bones of a joint decreases. The opposite of flexion is extension.
Step-by-step explanation:
Flexion is a type of angular movement that occurs when the angle between the bones of a joint decreases. For example, moving the forearm upward at the elbow is an example of flexion. On the other hand, extension is the opposite of flexion and occurs when the angle between the bones increases. Straightening a limb after flexion is an example of extension. So in the context of the question, the correct answer is B) Flexion .