GMAT SC: because vs. in that

[Kurogane]

I'm still a bit confused,I've had much time distinguishing"in that" and "because",but it seems that I am not successful....May be I should be sparing with using them?

[MikeJung]

thanks

[peaceyall]

This is from GMATPrep

The yield per acre of coffee berries varies enormously in that a single tree, depending on both its size and on climate and altitude, could produce enough berries to make between one and twelve pounds of dried beans a year.

A enormously in that a single tree, depending on both its size and on climate and altitude, could produce
B enormously in that a single tree, dependent on its size and also on climate and altitude, is able to produce
C enormously, because a single tree, depending on its size and on climate and altitude, is able to produce
D enormously, because a single tree, being dependent on its size, climate, and altitude, is capable of producing
E enormously, because a single tree, dependent on its size as well as on climate and altitude, could produce

OA C

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Back to the topic of "in that" versus "because". Why is "because" better than "in that"?


between answer choice C and the sentence below (not a choice above), which would be better?

"enormously in that a single tree, depending on its size and on climate and altitude, is able to produce"