The word quotient means that you'll be dividing two terms. In this case, you are dividing j by 8. The algebraic expression showing this is

.
Answer:
Heyya little student!
Sin means 
5 is the hypotenuse (its opposite to 90 degrees )
So, sin β would be:-
the side opposite to the angle β divided by the hypotenuse of the triangle.
The side opposite to β is 4
and as I said earlier, the hypotenuse is 5
<h2>So, sin β would be:-</h2><h2>

</h2>
I hope it helped you!
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D seems to have the possibility of having the largest range.