Answer and Explanation:
a. The Journal entries are shown below:-
Investment - Capital stock Dr, $51.5 million
To Cash $51.5 million
(Being investment is recorded)
Unrealized holding gain or loss Dr, $15.5 million ($51.5 - $36.0)
To Fair value adjustment $15.5 million
(Being fair value adjustment is recorded)
b. Unrealized holding gain or loss Dr, $5.5 million ($51.5 - $30.5 - $15.5)
To Fair value adjustment $5.5 million
(Being fair value adjustment before sale is recorded)
Cash Dr, $30.5 million
Unrealized holding gain or loss Dr, $21 million
To Investment - Capital stock $51.5 million
(Being sale of investment is recorded)