Final answer:
To find Marcia's original email, you can search by using the identifiers 'Sender' and 'Time'.
Step-by-step explanation:
To effectively search and find Marcia's original email, you can use the identifiers Sender and Time. By searching for the email based on the sender's name, which in this case is Marcia D., you can locate the email quickly. Additionally, using the time as a search criteria, specifically Thursday at 5:35 PM, will help narrow down the search results and locate the email.