Why Are Public Frameworks, Such as 1TIL, Attractive When Compared

Multiple Choice

Why are public frameworks, such as 1TIL, attractive when compared to proprietary knowledge?

A) Proprietary knowledge may be difficult to adopt, replicate or transfer since it is often undocumented
B) Public frameworks are always cheaper to adopt
C) Public frameworks are prescriptive and tell you exactly what to do
D) Proprietary knowledge has been tested in a wide range of environments