We just bought our DD the ikea mini table and chairs for her first birthday... she loves it so much more than i thought she would. She's happy to just sit on the chair, and let that be an activity in itself! So I'd go the sofa out of those choices too

The other thing we bought which was a huge hit was a ride on plane, it's got a handle on the back so she can push it along or we can push her along and when she's a bit bigger she'll be able to do it with her feet too, she love love loves it!