The web browser of course. It can do most anything an app can do including taking photos and recording audio.
I don’t know if there is another correct answer, right?
yeah as long as you have given it sufficient permissions. but actually i dont know if it does count default apps already come with phone, otherwise you'll already get a shiny ooh quality neat-looking (not guaranteed) camera app for better use.
I mean this is like picking “satellite phone” if you could take one thing to a desert island with you. Kind of a boring answer even if it’s technically correct.