The result of which expression will best estimate the actual product of (-4/5) (3/5) (-6/7) (5/6)?
a (-1) (1/4) (-1) (-1)
b (-1) (1/2) (-1) (1)
c (-4/2) (3/2) (-2/5) (5/2)
d (-3/4) (-3/4) (-1/5) (1/2)

B (-1) (1/2) (-1) (1)

Step-by-step explanation:

Given expression,

By the product rule of fractions,

In option A,

In option B,

In option C,

In option D,

Hence, the result of expression B would best estimate the actual product in given expression.

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step-by-step explanation:

because i said it is

i belive those are the ones that are under 90 degreese.