Step 1: Analyze the First Blank
- The sentence starts with "Morning," indicating a reference to time.
- The correct preposition for indicating time duration is "from," so we use "From Morning."
Step 2: Analyze the Second Blank
- The phrase "has been raining heavily" needs a subject.
- The best fit is "it," referring to the weather.
- Correct phrase: "it has been raining heavily."
Step 3: Analyze the Third Blank
- The phrase "depression ... the Bay of Bengal" needs a preposition to indicate the depression’s presence.
- The correct preposition is "in," so we use "depression in the Bay of Bengal."
Step 4: Analyze the Fourth Blank
- The phrase "according ... the weather forecast" needs the correct preposition.
- The correct preposition is "to," forming "according to the weather forecast."
Final Conclusion
The correct sequence is: "From Morning it has been raining heavily because of depression in the Bay of Bengal, according to the weather forecast."
Thus, the correct answer is (B) g, b, f, e.