Choose the word or set of words that best completes the following sentence.
As she began her public speech, Natasha was clearly __________ due to the anxiety of the situation, causing her to stumble over her words.
haughty
timid
composed
flustered
useful
Certain dinosaurs like the velociraptor were small and speedy, but others, like the brontosaurus, were enormous, slow, and __________.
manageable
lumbering
efficient
harried
swift