Answer:
The answer would be C, Tedium.
Step-by-step explanation:
Tedium is the state of being tedious. Tedious is the dullness, boredom, monotonousness, etc. This is a factor that can be controlled by a person. Age, weather and injury can't be controlled by a person's will. But boredom and dullness, tedium, can be controlled. Tedium can impact your daily workout routine. When you feel like tired or dull or tedium, you usually don't want to go for a workout, but this can be controlled and you can change your mood of being dull and bored to fresh at once.