Given the Following Data About an Assembly Line and the Knowledge

Multiple Choice

Given the following data about an assembly line and the knowledge that we are trying to attain an output rate of 40 units per hour,what is the theoretical minimum number of stations?
$$\begin{array} { | c | c | } \hline \begin{array} { c } \text { Work } \\\text { Element }\end{array} & \begin{array} { c } \text { Time } \\( \mathrm { sec } ) \end{array} \\\hline 1 & 90 \\2 & 80 \\3 & 75 \\4 & 70 \\5 & 90 \\6 & 85 \\\hline\end{array}$$

A) 4 or fewer stations
B) 5 stations
C) 6 stations
D) 7 or more stations