The correct answer to the question is option 'A', which is 1987.

Explanation:
1. Introduction:
The question asks for the correct year among the given options. We need to determine which year is the correct answer.

2. Analysis of the options:
a) 1987
b) 1989
c) 1985
d) 1990

3. Elimination process:
To find the correct answer, we can eliminate the options that are not correct based on our knowledge or by analyzing the given information.
- We can eliminate option 'B' (1989) because it is not the correct answer.
- Similarly, we can eliminate option 'C' (1985) and option 'D' (1990) as well, as they are not the correct answers.

4. Determining the correct answer:
To determine the correct answer, we need additional information or context provided in the question. Since no additional information is given, we can conclude that the correct answer is option 'A' (1987) based on the process of elimination.

5. Conclusion:
In conclusion, the correct answer to the question is option 'A' (1987).