I'm really confused between A and D too and can't still understand why A is wrong.
I chose A. The reason why I thought D was wrong is "widely accepted theory" part. The author said it has "gradually" won accepted (Line 20) rather than widely ...
... two activities enough: meditation and exercise. Download a meditation app and just ... weekly hours, your breaks, your meditation, your workouts, and do everything ...
Our very own @"J.Y. Ping" will be hosting BR Group for PT50 on Sunday. Appropriately, this is the very LSAT JY took back in September 2006. So it's all coming full circle.