A user's account is constantly being locked out. Upon further review, a security analyst found the following in the SIEM:

Which of the following describes what is occurring?

A. An attacker is utilizing a password-spraying attack against the account.
B. An attacker is utilizing a dictionary attack against the account.
C. An attacker is utilizing a brute-force attack against the account.
D. An attacker is utilizing a rainbow table attack against the account.