Answer:
D .porque es más rápido
Step-by-step explanation:
Why might a person want to take a taxi instead of walking?
the meaning of each of the words in english is:
A. porque es más económico
--- because it is cheaper
B. porque es más lento
----- because it is slower
C. porque se disfruta de la naturaleza
----- because you enjoy nature
D. porque es más rápido
----- because it is faster
hence option D is the correct answer