Option- 1: 1-4-3-2-1

This option arranges the astronauts in the following order: Sunita Williams, Kalpana Chawla, Sirisha Bandla, Rakesh Sharma, Sunita Williams. This is incorrect because it repeats Sunita Williams twice.

Option- 2: 2-4-1-3

This option arranges the astronauts in the correct chronological order of their space travel. Rakesh Sharma was the first Indian-origin astronaut to fly into space, followed by Kalpana Chawla, Sunita Williams, and Sirisha Bandla. Therefore, this option is the correct answer.

Option- 3: 2-1-4-3

This option arranges the astronauts in the order of Rakesh Sharma, Sunita Williams, Kalpana Chawla, and Sirisha Bandla. This is incorrect because it places Sunita Williams before Rakesh Sharma, which is not the correct chronological order.

Option- 4: 1-4-3-2

This option arranges the astronauts in the order of Sunita Williams, Kalpana Chawla, Sirisha Bandla, and Rakesh