Blanca Would Prefer a Certain Income of $20,000 to a Gamble

Multiple Choice

Blanca would prefer a certain income of $20,000 to a gamble with a 0.5 probability of $10,000 and a 0.5 probability of $30,000. Based on this information:

A) we can infer that Blanca neutral.
B) we can infer that Blanca is risk averse.
C) we can infer that Blanca is risk loving.
D) we cannot infer Blanca's risk preferences.