Look at the dictionary definition for the word contemplated. contemplated / ˈkän-təm-ˌplāt-ɪd / verb: considered with continued attention

Based on this definition, which sentence is the best use of the word contemplative?

Her contemplative speech was rather unfocused.

He was seated in a contemplative pose in the quiet library.

We watched the contemplative television show before heading to bed for the night.

We were not very contemplative about the unfamiliar subject.