Answer:
$0
Step-by-step explanation:
The computation of the gain or loss realized is shown below:
= Sale price of stock - purchase price of the stock
= $2,400 - $600
= - $600
Since there is a loss of - $600 but this loss is not recognized as it reflects the related party transaction. Since the Deirdre sold the shares to her brother with comes under the related party transactions. So, no loss or gain would be recognized