Answer:
a) Parent's investment in the Subsidiary is reduced by $4,500.
Explanation:
The computation is shown below:
The balance in investment prior to the sale of securities is
= $150,000 × 90%
= $135,000
Now The balance in investment after to the sale of securities is
= (($150,000 + 24,000) × 75%)
= $130,500
Therefore Decrease in investment in Subsidiary is
= $135,000 - $130,500
= $4,500
Hence, the correct option is A.