A developer was reviewing an Orchestration process whose “main” attribute is set to Main.xaml in project.json. However, the process is not pausing as intended.

What is a possible cause for this issue?

A. UI activities were not used in the process.

B. “Wait for Form Task and Resume” activity was called in Main.xaml.

C. Process created a task in the Orchestrator.

D. “Wait for Form Task and Resume” activity was called in GetApproval.xaml.