What Is the Expected Value of Perfect Information of the Following

Multiple Choice

What is the expected value of perfect information of the following decision table?
$$~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{ \text { States of Nature } } \\\begin{array} { | l | c | c | } \hline \text { Alternatives } & \mathrm { S } _ { 1 } & \mathrm {~S} _ { 2 } \\\hline \mathrm { p } & .6 & .4 \\\hline \text { Option 1 } & 200 & 300 \\\hline \text { Option } 2 & 50 & 350 \\\hline\end{array}$$

A) 0
B) 20
C) 50
D) 150
E) 200