In the following question, the given sentence has four parts marked P, Q, R, and S. Choose the part of the sentence with the error and mark as your answer. If there is no error, mark 'No error (S)' as your answer.
The Kepler Space Telescope, (P)/ launched on 2009, was designed (Q)/ to find planets around other stars. (R)/ No error (S)

Correct option is B

Option (b) contains an error.
Error Identification: The preposition "on" is incorrect. It should be replaced with "in" to refer to a year.
Grammatical Explanation: "In" is used to indicate years, months, or long periods of time, while "on" is used for specific dates.
Corrected sentence: "The Kepler Space Telescope, launched in 2009, was designed to find planets around other stars."
Explanation: The correct preposition for referring to years is "in."