Although West has 11 his/her hand is aceless and a 4333, so it's real value could be a little less than 11. 2NT describes west's hand HCP-wise better, but 2NT is also passable, and East might pass that, too. 2♣ with only 4 cards and such a balanced hand (and such a better description of the hand in NT) is out of the question. 3NT is way too much. You need several things to work in order to make game here, anyway. 2 finesses have to be right and you have to either guess the clubs perfectly or find one of the black suits breaking 3-3 which all in all is about less than 40%, which makes it a bad game.