Arrange the following events in the correct chronological/logical sequence of light propagation through an optical fiber communication system: 1. Electrical signal is converted into light pulses by a transmitter. 2. Light enters the core at an angle less than the acceptance angle. 3. Light undergoes multiple total internal reflections at the core-cladding interface. 4. Light pulses are received and converted back into electrical signals by a photodetector. Select the correct sequence:

Options:

• A: 2 -> 1 -> 3 -> 4
• B: 1 -> 2 -> 3 -> 4
• C: 1 -> 3 -> 2 -> 4
• D: 2 -> 3 -> 1 -> 4

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