Who Awards Bases?

[Marty Rogers]

This one came up at our association
meeting last night, of course with
various opinions:

After an overthrow into dead ball
territory, who awards bases, with
1) BU in A, 2) BU in B, 3) BU in C?

Answer: A (BU)
B (PU)
C (Either)
D (None of the above)