Which is an appropriate technique for note-taking?

being careful to spell correctly

writing down every word that is spoken

using symbols such as question marks

scribbling doodles while listening

The 3rd option is correct. You just need to spell good enough where you can read it. Every word that has been spoken is not important so never write everything you hear down. Scribbling doodles while listening is untrue. If you're drawing you're not paying attention or learning, you're focused on what you're drawling

Using symbols such as question marks