The answer is true. She said in her letter that she was bringing back souvenirs for her friends.
Answer
3/4 kilogramo de aguacate cuesta $48
Both B and C are wrong grammatically because estoy and soy are conjugated for the first person when it is second person. Both A and D are correct gramatically, A would be stating that you are boring, since Ser describes adjectives and other permanent things, D stating that you are bored, estar describes feelings. A would make the most sense, so A would be the correct answer in the context of the rest of the question.
Answer: There are more than 400 different species of Birds.