"It is our karmic imprint. Not just what we are born with, but also what we accumulate while living. We can consider it as the result of our genetic code, upbringing and environment" -> Directly defines karmic imprint as Option 2
Option 1 -> This is an effect of karmic imprint, not what it means
Option 3 -> Truth of being is mentioned separately
Option 4 -> Past lives not mentioned at all
Note: When passage directly defines something, that's usually the answer!