The first organisms to evolve on Earth were-

Coacervates are:

Following are the two statements regarding the origin of life.
$(A)$ The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
$(B)$ The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Of the above statements,which one of the following options is correct?

By the time of $......$ mya,invertebrates were formed and became active.

Abiogenesis occurred about how many billion years ago?

The Earth is believed to have been formed approximately how many years ago?