Identify which of the following options is/are correct.
A. The theme of the G-20 summit 2023 taking place in India is - 'One Earth. One family, One Future'.
B. G-20 was established in the year 1999.
C. Singapore is not a member of G-20.
D. First Summit of G-20 was held in France.
Choose the correct answer from the options given below: