Final answer:
Keeping hands on the knee
Step-by-step explanation:
In crescent lunge, there are several modifications that can be made to accommodate different abilities and needs. However, out of the options listed, keeping hands on the knee is not a way that crescent lunge could be modified.
Some common modifications for crescent lunge include bringing a blanket under the knee to provide extra cushioning and support, and bringing the front knee over the ankle to decrease the intensity of the pose. These modifications can help individuals with knee issues or limited range of motion to still be able to practice crescent lunge safely and comfortably.