You can tell that grandads house is a) brand new
b) very cluttered
c) close to the grocery store
d) located in a big city ​

B) Very cluttered

Explanation:

In the excerpt presented, the narrator describes the actions of the main character called Nate including that this character decides to go to the garage of his Grandad. This place is described by the narrator as "The dusty garage... it became cramped with Granddad’s possessions" also, the narrator explicitly states this space contains multiple boxes, bags, and other objects. This suggests the garage and therefore the house of Grandad's is disorganized and filled with multiple things or very cluttered.

what does the author mean by "many journeys" in this excerpt?

government intervention

multiple truths

individual stories

historical monuments

yes the first one is correct .