Can someone help me with this??

So I have a 27" late 2015 Mac. Im currently runnimg monterey and trying to install the current version of Ventura. When I go to restart my computer while holding down the option key, it doesn't give me options to choose what system I want towindows. with, It just restarts. Can anyone help with this?

I used a USB with Ventura and open core on it. I'm also doing a clean install. I hope this makes sense, and I've given all the right info/context for someone to help me with. Also, my Bluetooth keyboard and mouse still work during this process. It just won't pull up the boot window.

submitted by /u/Ancient-Weird-1863
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