Which sentence begins with a question word from the USCIS reading vocabulary?

QUESTION WORDS are essential vocabulary on the USCIS Reading Test. Recognizing them helps the applicant read questions with proper intonation. Question words on the USCIS list: WHO, WHAT, WHEN, WHERE, WHY, HOW. Sample questions on the reading test: 'WHERE is the White House?' (Question word + linking verb + noun phrase) — Answer: in Washington, D.C. 'WHO was George Washington?' Answer: The first President. 'WHEN do we celebrate Independence Day?' Answer: July 4. 'WHAT is the capital of the United States?' Answer: Washington. 'WHY do people come to America?' Answer: For freedom, for a better life, etc. 'HOW many states are there?' Answer: 50. In English, WH-questions typically use FALLING intonation (going down at the end), unlike yes/no questions which use RISING intonation (going up at the end). For example, 'Where is Washington?' starts higher on 'Where' and falls toward the end. The reading test evaluates whether the applicant reads with intelligibility, not perfect native-speaker pronunciation. Most applicants who study the vocabulary can pass.