Istari Investigations is a corporation. Its stated purpose is to use magic as a supplement to traditional detective work in order to help private citizens with their personal problems. Additionally, Istari has powers to enter into contracts and buy or rent property in order to support its corporate purpose. One day, the Istari Board is contacted by Silmaril, Co., a mining company that also makes jewelry, about possibly merging the two corporations. The Istari Board votes in favor of the merger. This is an example of what? O Respondeat superior An ultra vires act O Good thinking O A corporation by estoppel