La respuesta correcta es (tú)
<span>prefiero caminar por las calles.</span>
B. estoy; estamos. Estoy is I am and Estamos is we are
The answer could be dijiste which would be (informal) and could also be dijo which would be (formal). It just depends on who you say it to
<span>The Grand Canyon ________ in the state of Arizona.
</span>
Is
Hope this helps!
STSN