Refer to the exhibit.

The correct answer is A. Drug Abuse. In the exhibit, the Drug Abuse FortiGuard web-filter category is configured with the Block action. FortiSASE applies the configured action according to the FortiGuard category assigned to the requested website. The FortiSASE Administrator Study Guide explicitly defines Block as an action that denies access to URLs belonging to the configured category and displays a replacement message.

The other displayed categories use different behaviors. Hacking is set to Monitor, which processes traffic similarly to Allow but generates a log entry whenever matching traffic is detected; therefore, the user is not denied access. Illegal or Unethical is configured as Warning, which displays a warning page but permits the user to continue if they choose. Discrimination is configured as Allow, so traffic continues through the remaining inspection engines and is not blocked.

The exhibit therefore directly maps the requested behavior—deny access and display a replacement message—to the Block action, and Drug Abuse is the only listed category configured that way.

Study Guide Reference: Security and Endpoint Profiles > Web Filter With Inline-CASB > FortiGuard Category Filter, page 118.