Answer:
4. Beth is impressed by the strength and loudness of the thunder.
Step-by-step explanation:
In the given passage, Beth and Natalia are shown playing, with the rains falling which makes them stuck inside the house. Their eagerness to be outside and play is thwarted by the heavy rainfall.
But the main point of the passage and the question is the reference to Thor, the Norse god. The character of Thor is a myth, but ancient German mythology holds the belief that he is a mighty god, son of Odin, and from another world. Beth's reference to this god, commenting "Wow, Thor is really busy out there!" suggests she's impressed by the loud and strong nature of the rains and thunder.
Thus, the correct answer is option 4.