Staff Company Allocates Common Building Department Costs to Producing Departments

Staff Company allocates common Building Department costs to producing departments (P1 and P2) based on space occupied,and it allocates common Personnel Department costs based on the number of employees.Space occupancy and employee data are as follows: $\begin{array}{lcccc}&\text { Building } &\text { Persomel } &\text { Dept. P1 } &\text { Dept. P2 }\\\text { Space occupied } & 2,000 \mathrm{~m} & 10,000 \mathrm{~m} & 120,000 \mathrm{~m} & 70,000 \mathrm{~m} \\\text { Employees } & 6 & 10 & 80 & 50\end{array}$
If Staff Company uses the sequential allocation method and the support department with the highest percentage of interdepartmental services is allocated first,what is the ratio representing the portion of Personnel Department costs allocated to Department P2?

A) 50/130
B) 50/140
C) 50/146
D) 90/140