which opening sentence uses a definition or fact to grab the reader’s attention for an essay on “the effects…

which opening sentence uses a definition or fact to grab the reader’s attention for an essay on “the effects of yoga”? many people around the world practice yoga. on average, yoga decreases anxiety levels by about 40%. there are several different types of yoga. yoga is a popular form of exercise.
Answer
Brief Explanations:
The key is to find a statement that presents a factual claim related to the effects of yoga. "On average, yoga decreases anxiety levels by about 40%" is a fact - based statement about an effect of yoga. The other statements are more general facts about yoga (e.g., popularity, types) rather than effects.
Answer:
On average, yoga decreases anxiety levels by about 40%.