What action should a member take if it is believed that an OPSEC disclosure has occurred?
a. Report the OPSEC disclosure immediately to the EUCOM J2 Security Office.
b. Do nothing as it is not your responsibility.
c. Take direct action and conceal the disclosure immediately as it constitutes a critical threat that must be rectified.
d. Report the OPSEC disclosure to your OPSEC representative or the EUCOM OPSEC PM.
e. None of the answers are correct.

d. Report the OPSEC disclosure to your OPSEC representative or the EUCOM OPSEC PM.

Explanation:

Operational Security (OPSEC) is a process that identifies and protects critical and sensitive information of U.S Navy military operations. It also develops counter measures when information are at threat from exploitation and disclosure.If it is believed that an OPSEC disclosure has occurred, it is the responsibility of the member to inform about the disclosure or violation to a OPSEC representative or the EUCOM OPSEC Program Manager.

Sector is best defined as (part).