Answer:

The word that best fills the blank in the given sentence is "crisis" (option A). Let's understand why:

Context:
The sentence talks about the railway minister announcing an increase in the number of super fast trains. However, it also mentions that the present _______ has not prevented this announcement. From this context, we can infer that the blank should be filled with a word that describes a situation or condition that should have prevented the minister from making such an announcement, but hasn't.

Explanation:
1. Crisis:
- A crisis refers to a situation of intense difficulty, danger, or instability, often caused by a significant event or problem.
- In this context, the word "crisis" implies that there is a serious problem or issue in the railway system, which should have prevented the railway minister from announcing an increase in the number of super fast trains. However, despite this crisis, the minister has gone ahead with the announcement.
- Therefore, "crisis" is the most suitable word to fill the blank in the given sentence.

2. Syndrom:
- The word "syndrome" refers to a group of symptoms that consistently occur together and indicate a particular disease or abnormal condition.
- In the given context, "syndrome" does not fit because it does not convey the idea of a problem or difficulty that should have prevented the railway minister from making the announcement.

3. Government:
- The word "government" refers to the governing body of a nation, state, or community.
- While it is possible that the government could have a crisis or face difficulties, the sentence specifically mentions that the present _______ (government) has not prevented the railway minister from making the announcement. Therefore, "government" is not the appropriate word to fill the blank.

4. Generation:
- The word "generation" refers to a group of individuals born and living at the same time.
- In the given context, "generation" does not convey the idea of a problem or difficulty that should have prevented the railway minister from making the announcement.

Conclusion:
Based on the provided context and the meanings of the options, the word "crisis" (option A) is the most suitable word to fill the blank in the given sentence.