Nancy's Husband Owns Land in an Area near San Francisco

Nancy's husband owns land in an area near San Francisco that could use some form of mass transit into the city.  Nancy's husband also owns an interest in a company that constructs light-rail systems.  Nancy works for the county and is part of the planning for the light-rail system.  She recommends placing the access station near her husband's property, something that will increase the value of the property by 150%.  Which of the following is correct?

A) Nancy has a conflict of interest.
B) Nancy does not have a conflict of interest if other employees are also involved in making the decision.
C) Nancy does not have a conflict as long as she does not have her name on the title to the property.
D) Nancy does not have a conflict as long as she does not benefit from the proceeds of her husband's businesses.