This Table Shows Incidence Rates (Per 100,000) of Groups Exposed

This table shows incidence rates (per 100,000) of groups exposed to neither risk factors or to one or two risk factors for lung cancer.What is the expected value of incidence rate X on asbestos exposure group among smokers in multiplicative scale? Incidence Rates of Lung Cancer by Asbestos and Smoking Exposure Status
$$\begin{array}{r}\text { Smoking status }\quad\\\text { Asbestos exposure }\begin{array} {|l|l|l|} \hline& \text { Yes } \quad \quad& \text { No }\quad\quad \\\hline \text { Yes (regular exercise) } & 2.0 & 2.6 \\\hline \text { No (no exercise) } & 4.0 & x\\\hline\end{array}\end{array}$$

A) 4.0
B) 6.0
C) 8.0
D) 12.0
E) 24.0