Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions.

Nam had a wonderful holiday last summer. At first, his parents wanted him to visit his aunt in Da Lat. After that, he decided to visit his uncle in Ha Noi – the capital of Vietnam. He stayed in his uncle’s house for three weeks. His uncle took him to a lot of interesting places such as Ho Chi Minh Mausoleum, Ba Dinh Square, West Lake, Lenin Park. He bought some gifts for his friends in Ho Chi Minh City. He went out with his uncle all day, but he wasn’t tired. He felt very happy. When he returned to Ho Chi Minh City, he told his friends about his vacation.

Where was Nam on his last summer vacation?