Use This Scenario for the Following Question(s) -Refer to the Scenario Above

Multiple Choice

Use this scenario for the following question(s) .
With the backyard poultry craze unleashing a tidal wave of municipal code proposals, Chickenverks is poised to capitalize on the sudden demand for chicken tractors. The portable henhouses they have designed can be assembled in 10 basic steps, each with a required time and predecessor as shown in the table. There are 8 productive hours available in a day and the manufacturer wishes to produce 40 units per hour.
$$\begin{array} { | c | c | c | } \hline \text { Task } & \text { Time } ( \mathrm { sec } ) & \text { Predecessor } \\\hline \text { A } & 25 & \cdots \\\hline \text { B } & 35 & \text { A } \\\hline \text { C } & 20 & \text { A } \\\hline \text { D } & 55 & \text { B } \\\hline \text { E } & 45 & \text { C, D } \\\hline \text { F } & 15 & \text { B } \\\hline \text { G } & 35 & \text { C } \\\hline \text { H } & 40 & \text { D, E } \\\hline \text { J } & 25 & \text { F, G } \\\hline \text { K } & 30 & \text { H, J } \\\hline\end{array}$$
-Refer to the scenario above. Balance the line according to the longest operation rule. What is the efficiency of your line balance?

A) 85.66%
B) 90.28%
C) 88.14%
D) 83.88%