Concept:
In Hindustani classical music, the octave is divided into two parts:
\[
\text{Purvanga} = Sa \text{ to Ma}
\]
\[
\text{Uttaranga} = Pa \text{ to upper Sa}
\]
If the Vadi swara of a raga lies in the Purvanga region, then the raga is called a Purvangavadi raga.
Step 1: Understand Purvangavadi Raga.
Purvangavadi ragas give more importance to swaras lying in the first half of the octave.
The swaras of Purvanga are:
\[
S,\ R,\ G,\ M
\]
If the main swara or Vadi swara belongs to this region, then that raga is considered Purvangavadi.
Step 2: Check the given groups.
In the given options, the group:
\[
\text{Vrindavani Sarang, Yaman, Bihag}
\]
contains ragas which are treated as Purvangavadi in this context.
Step 3: Eliminate the other groups.
The other groups contain ragas where the Vadi position does not consistently fall in the Purvanga region.
For example, Jaunpuri is generally treated as Uttarangavadi because its important swara lies in the Uttaranga region.
Step 4: Final conclusion.
Therefore, the correct group of Purvangavadi ragas is:
\[
\boxed{\text{Vrindavani Sarang, Yaman, Bihag}}
\]
Hence:
\[
\boxed{\text{(B)}}
\]