You have saved a network and activates with assigned material components. As soon as you release the network, you receive the error message "Business transaction cannot be carried out" What could be the reason for this error message?

You have saved a network and activates with assigned material components. As soon as you release the network, you receive the error message "Business transaction cannot be carried out" What could be the reason for this error message?
A . Missing budget for material components
B. Missing reservations for material components
C. Missing material availability
D. Missing authorizations to release material components

Answer: C