Which of the following statements is/are correct?

1. In June 2016, the LIGO group of scientists announced the detection of a second set of gravitational waves.

2. Gravitational waves were generated due to merger of two black holes at about 1.4 billion light-years distant.

3. Gravitational waves were inserted due to collision of two white dwarf stars at about 1.4 billion light-years distant.

Select the correct answer using the code given below.

Consider the following statements : 1. Rafael Nadal won Men’s Singles French Open Tennis Tournament…

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Which of the following pairs of Constitutional authority and procedure of appointment is/are correctly matched…

Among the following ideals and philosophy, identify those enshrined in the Preamble to the Constitution…

Electoral disputes arising out of Presidential and Vice-Presidential Elections are settled by :