He hasn't taken any option off the table with Russia. He's applying economic pressure by placing large tariffs on countries that trade openly with Russia, he's floating the Tomahawks to let Putin know we'll just keep beefing up Ukrainian weaponry, etc. I think he's hesitant to activate, say, B2 bombers like he did in Iran, but Russia remains a huge nuclear power so it obviously has to be treated differently, no one wants World War III.