Final answer:
The correct way to communicate with the office about a job submission through a portal is by using the Chat feature (Option A).
Step-by-step explanation:
To communicate anything to the office about the job you are submitting through the portal, you should use the Chat feature. The correct option is A) Chat feature. This feature is typically designed for instant messaging and provides a quick and convenient way to get in touch with the office for any inquiries or to share information regarding your job submission. It's especially useful for addressing any issues or questions that may arise during the process.