Answer:
E. Debit Income Summary $75,000; credit Revenues $75,000.
Explanation:
The closing entries are as follows:
1. Service Revenue A/c Dr A/c XXXXX
        To Income Summary A/c XXXXX
(Being revenue account closed)
2. Income summary A/c Dr XXXXX
      To Expenses A/c  XXXXX
(Being the expenses account is closed)
3. Income summary A/c Dr XXXXX
       To Retained earning A/c  XXXXX
(Being the profit is recorded)
4. Retained earnings A/c Dr  XXXXX
       To Dividend A/c  XXXXX
(Being dividend account is closed)
And all other closing entries are also passed
So, the option E is right as it reflect the wrong journal entry