Which ones are the most essential for the origin of life?

Preformation theory concerning the transmission of characters was given by

$A.I.$ Oparin wrote

According to which theory did the first living cell originate from abiotic molecules through a process of gradual evolution?

The most important condition for the origin of life is the presence of

Assertion : Coacervates are believed to be the precursors of life.
Reason : Coacervates were self-duplicating aggregates of proteins surrounded by lipid molecules.