This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to beat candy crush level 23
Clear stones first.
There are five vertical columns that have candy in them. First try to see if there are any obvious combinations in them.

Select from: a). It's hard to beat this style, but if there are any, you can try to successfully beat it. Flowers, lucky charms, candy, and jumps are also fun combinations. b). If there are, you'll have a very good guess for which one to clear. Once you find them, move on to the next column or two until you're out of stones. c). If the stones are small, the easiest way to access the ones you beat may be to break one of them : On the top column you might see a " + " symbol. This contains a large circle with two wheels on each side. d). Working from the bottom up is the best way to set off chain reactions. Since the stones are blocking a large part of the gameplay area, remove them first.
The answer is:
d).