The Delay

The cooling rain had come over the valley in the afternoon, tapping on the roof of the house. Inside there was a buzzing excitement as Ahmed's family prepared for a camping trip in the mountains. Everyone was looking forward to the trip, but nobody was more excited than Ahmed.
Ahmed stood at the door waiting for the rain to stop so he could take his stuff out to the car. Soon enough, the rain stopped, but he noticed something else—an unfamiliar car stopped on their block and in front of their car. He ran to his father, screaming "Dad, we need them to leave; they're blocking our path!" Ahmed's father paused tying up the last of the luggage gear and went out to speak to the mother and father in the car with their family.
He soon returned to be greeted by Ahmed, asking, "Dad, did you tell them to move? When are we leaving?"
Ahmed's father walked past him and went straight to his tool closet. When he returned, he addressed Ahmed, "Now, wait just a minute. This family was also traveling for a weekend trip, but they got a flat tire. They need our help."
Ahmed wanted to protest and really wanted to go on that camping trip, but he knew he wanted to make his dad happy, and nothing was more important than helping someone in need.
"I'm sorry Dad, I was just so excited. Take as long as you need."
"As long as I need? It's important we both help out." Then he added with a smile, "Plus, it's good practice for when we need to put up that tent!"
5
What is the major event in this story that impacts the plot?
A.
the sudden arrival of a car outside the house
B.
the afternoon rain coming falling down
C.
tourists stopping to look at the house
D.
a camping trip in the mountains