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Consider a feed stream consisting of three components and flowing at 1mol/min as in the following figure. The stream is separated into two streams D and R. 14 All choices specify three process variables, but some combinations are not sufficient to determine the values of all remaining process variables. Which of the following combinations of process variables, if known, would provide sufficient knowledge to solve for the values o all other process variables? R,yA, and xC xA,xB, and yA D. yA, and xB yA,xA, and xC D. yA, and xA D. yA, and yB D,R, and yA yA,yB, and yC Hint Assistance Used Write down all the known variables. Write all the balance equations (three component balances and one total balance, and two constraints). Check to see if one of the balances or constraints is already satisfied with the specified known variables