strong >A statement has been given with three words in bold. There are three answer choices given below, one or more of which may act as replacement to the original set of words. You are required to find the correct combination of the answer choices. In case the original set is correct, select ‘No improvement’. The satellite detected an anomaly in the atmosphere, recording unusual platelets  that hinted at the presence of previously unknown elementary  in the planet’s outer layers.
I. instrument, disturbance, compounds
II. probe, variation, substances
III. body, derive, molecules