Question

Read the sentence from the instructions for stretch #2 in "Stretching for Beginners.”
If this pose becomes too difficult, you can modify it by putting your knees on the mat as opposed to your toes.
Which best paraphrases this part of the instructions?
If this position becomes strenuous, you can simplify it by instead balancing on your knees.
Move from your toes to your knees if this position becomes too taxing to maintain.
If desired, you can rest your knees on the mat as opposed to your toes.
You can make this pose easier by balancing on your knees instead of your toes.

Answer 1

"You can make this pose easier by balancing on your knees instead of your toes."

Reason: it preserves the original conditional (when it's too difficult), the intent to modify/simplify the pose, and the specific change from toes to knees.