Drop shadow issue

Hello everyone,

I am currently experiencing an issue with Adobe Illustrator. When I try to add a drop shadow to an object through the aesthetic effects menu, I notice that the "Drop Shadow" option is missing. I've attached a screenshot to illustrate the problem. I've tried searching for this option in various sections of the "Effect" menu, but to no avail.

I have already tried the following solutions without success:

• Checked for updates to ensure I'm using the latest version of Illustrator.
• Reset Illustrator preferences.
• Reinstalled the software.

Thanks in advance for your help !