My best guess would be letter choice B: frequent. Choices C & D aren't synonyms of 'common' so they're automatically ruled out. Letter choice A is a synonym of 'common' however it doesn't fit the passage in my opinion. Therefore I would go with B: frequent.
There are a ton of great things Suzanne can get for her desk. i recommended hidden LED lights, amazon echo dot, wrist pad, a couple of fidget toys and add a couple of non high maintenance plants.
