Directions: In the following question, sentences of a paragraph have been jumbled and have been labelled as A, B, C, D and E. You are required to rearrange the jumbled sentences accordingly by selecting the correct option.

A: Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope in Chile have recorded a hot bubble of gas orbiting Sagittarius A*,

B: This requires the bubble to be moving at nearly 30 per cent the speed of light.

C: the supermassive black hole at the centre of the Milky Way galaxy.

D: The telescope observed the gas bubble swirling around the black hole, doing a complete revolution in just 70 minutes.

E: These have previously been spotted only at X-ray and infrared wavelengths, but this is the first time such a phenomenon was recorded by a radio telescope.