which word correctly completes this conversation?\nernesto: matilde, ¿cómo es el clima en otoño en tu…

Brief Explanations:

In Spanish, when describing the weather (like saying it's cold), the standard collocation is "hacer + adjective for weather". The phrase "hace frío" is the correct, fixed expression to mean "it is cold". Other options do not fit: "está" is used for states of being of objects/people, "usa" means "uses", and "tiene" means "has", none of which are used to talk about temperature/weather in this context.

Answer:

C. hace