Oskar Wilhelm Robert Paul Ludwig von Beneckendorff und von Hindenburg (31 January 1883 – 12 February 1960) was a German "Generalleutnant". The son and aide-de-camp to Field Marshal and Reich President Paul von Hindenburg had considerable influence on the appointment of Adolf Hitler as German chancellor in January 1933.

Based on that paragraph can we conclude that this sentence is true?
Oskar Hindenburg could have been president.

Available choices:
[A]. Yes;
[B]. It's impossible to say;
[C]. No;
[B].