He was a close friend to Charles Darwin so he helped him out in creating the theory of evolution so I would say C: He developed the idea of inheritance of acquired characteristics.
The correct answer is horizon.
Hope I helped.
Answer – Extrapolation
Extrapolation is the estimation of a value or quantity beyond
a known data range based on a trend in the data<span> (in other words, deducing
unknown values from trends in the known data). While extrapolating, one </span>would
usually estimate the unknown data with the presumption that
existing trends in the known data will continue or that a current method will
remain applicable.
Heaps and heaps and heaps and heaps of them!
