12. Which of the following is correct regarding aspects of the strategic contingency model?a. If the resources you control are vital to the organization, you will be viewed as a threat to the others and will have less job security.b. If there is a clear substitute that exists, the level of power held is greater.c. The more difficult something is to obtain, the less value it tends to have.d. The more dependent you are on another, the less power you have.