Step 1:
Business organizations perform social responsibilities towards society, employees, consumers, and environment.
Step 2:
Social responsibility activities improve:
• Public image
• Customer trust
• Employee satisfaction
• Long-term sustainability
Step 3:
Although social expenditure may reduce short-term profits, it improves the business environment and long-term profitability.
Thus, the reason correctly explains the assertion.
Step 4:
Therefore:
\[
\boxed{\text{Both (A) and (R) are correct and (R) correctly explains (A)}}
\]
Hence, the correct answer is:
\[
\boxed{\text{(1)}}
\]