Step 1: Konkan Railway Overview.
The Konkan Railway is a railway line that runs along the western coast of India, connecting the states of Maharashtra and Karnataka.
Step 2: Analysis of options.
- (A) Maharashtra and Gujarat: Incorrect, as Konkan Railway does not connect Maharashtra and Gujarat.
- (B) Maharashtra and Karnataka: Correct, the Konkan Railway connects these two states.
- (C) Karnataka and Andhra Pradesh: Incorrect, Konkan Railway does not pass through Andhra Pradesh.
- (D) Maharashtra and Madhya Pradesh: Incorrect, the railway does not connect to Madhya Pradesh.
Step 3: Conclusion.
The Konkan Railway connects Maharashtra and Karnataka, so the correct answer is (B) Maharashtra and Karnataka.