I think that Trust A and C could refer to objects. For instance, people rely on their watches which is a form of Trust A. If the watch allows them to arrive on time to appointments, they could develop the epistemic attitude that the watch is electronically or mechanically sound, exemplifying Trust C. The watch, however, could not be judged to be morally trustworthy, as in Trust B, because the watch has no moral will. This dimension of trust is necessary in the development of a normative understanding of trust.Trust B is intertwined with Trust A and Trust C in actual practice. When Dr X or Nurse X is trusted with the care of a patient, he/she is required to use judgment when he/she is
using his/her knowledge and abilities. This judgment has a moral dimension because the well-being of the patient should be primary.
Johns [1996], Meize-Grochowski [1984], and SneIson [1992]