Answer:
B. Dan una caminata por el sendero.
Explanation:
The preposition <em>POR</em> in Spanish can have a lot of different meanings depending on the context. I
In the B. sentence, <em>por</em> means <em>through. </em>
Dar una caminata POR el sendero. = To take a walk THROUGH the path.
A. Estudio por dos horas cada noche.
(I study FOR two hours every night.)
It refers to a time duration.
C. Te doy una duranzno por unas cerezas.
(I give you a peach FOR some cherries.)
It indicates an exchange.
D. Gracias por visitar.
(Thanks FOR visiting.)
A very common expression. When we want to thank someone with <em>gracias</em>, we always use POR to say FOR WHAT.