For the deployment of new features in monolith architecture, why does it take longer time than microservices architecture?

For the deployment of new features in monolith architecture, why does it take longer time than microservices architecture?
A . Because need to load all used & unused modules of applications
B . Because need to load only all used modules of applications
C . Because need to load all unused modules of applications
D . Because need waiting approval from Project Manager

Answer: A