It's D.
What we need to prove here is that stocking regular syrup is not a better option than stocking low-calorie syrup.
Imagine that FastMart stores regular syrup: according to D, 75% of its customers will buy the syrup.
On the other hand, provided that FastMart stores low-calorie syrup: 25% of low-calorie lovers will buy it + those 75% who prefer regular syrup but are willing to switch provided that regular is not available. In this way, by storing low-calorie syrup, FastMart attracts 100%
...
What we need to prove here is that stocking regular syrup is not a better option than stocking low-calorie syrup.
Imagine that FastMart stores regular syrup: according to D, 75% of its customers will buy the syrup.
On the other hand, provided that FastMart stores low-calorie syrup: 25% of low-calorie lovers will buy it + those 75% who prefer regular syrup but are willing to switch provided that regular is not available. In this way, by storing low-calorie syrup, FastMart attracts 100%
...
![FLO – Therapy at the Club – Pre-Single [iTunes Plus M4A]](http://is1-ssl.mzstatic.com/image/thumb/Music221/v4/a4/11/88/a41188ed-0f2e-e8d5-1163-d59e373cc58c/26UMGIM30046.rgb.jpg/208x208bb.webp)
