for the usage of 'by supporting '
TeHCM, wouldn't "While" be better than Where?
For the most part, the use of 'while' would indicate two events happening simultaneously. As you can see, this is not the case in this sentence that's why I think 'where' should be used.
Besides, the rest of choices have other errors besides the use of 'while'
Don't be afraid to take a flying leap of faith.. If you risk nothing, than you gain nothing...