When was French declared as a republic?? option are available here ::

1 . on 21st September 1792.
2. on 18th September 1848.
3. on 20 September 1792.
4. on 25th October 18 21 .

question number 2
is made of lava

question third
which major social group constituted the largest share in population of Sri Lanka

options are available here ::

1. Sinhala.
2. Sri Lankan Tamil
3. Muslims
4 . Indian Tamils

please do not cross the invalid answers...!!!

I want full correct answer..!!​