Final answer:
The leading cause of on-the-job related deaths for real estate professionals in 2007 was Assault.
Step-by-step explanation:
In the year 2007, the leading cause of on-the-job related deaths for real estate professionals was C) Assault. According to the information provided, murder is the second leading cause of death in the workplace, and it is also the primary cause of death for women. Many workers are physically assaulted or threatened with assault, and some are murdered in domestic violence situations at their workplace.