Users report that they are no longer able to process transactions with the online ordering application, and the logging dashboard is displaying these messages:
Fri Jan 10 19:37:31.123 ESI 2020 [FRONTEND] [NFO: Incoming request to add item to cart from user 45834534858
Fri Jan 10 19:37:31.247 EST 2020 [BACKEND] INFO: Attempting to add item to cart
Fri Jan 10 19:37:31.250 EST 2020 [BACKEND] ERROR: Failed to add item: MYSQLDB
ERROR: Connection refused
What is causing the problem seen in these log messages?
A . The database server container has crashed.
B . The backend process is overwhelmed with too many transactions.
C . The backend is not authorized to commit to the database.
D . The user is not authorized to add the item to their cart.
Answer: A
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