Which sentence is correctly written for a USCIS dictation test?

Correct: 'Freedom of speech is important.' CAPITALIZATION RULES demonstrated: FIRST WORD capitalized: 'Freedom' (capital F); PROPER NOUN: Freedom of speech is a proper concept but uses regular capitalization rules — only the first word of the sentence is capitalized here, not every word; 'speech' and 'is' and 'important' are lowercase; PERIOD: end the sentence with a period. WHAT NOT TO DO: Option A (all lowercase) — no capitalization at all, incorrect; Option C (every word capitalized) — only proper nouns and the first word of sentences are capitalized, not every word; Option D (all caps) — this would only be used for acronyms or extreme emphasis, never for normal sentences. USCIS WRITING VOCABULARY CONNECTION: Freedom of speech appears on the USCIS writing vocabulary list under CIVICS. The word IMPORTANT is NOT on the vocabulary list but is a common English word; the test sentences use primarily vocabulary list words but may include some common words not on the list. PRACTICE SENTENCES: 'Citizens can vote.' 'We have freedom of speech.' 'The flag has 50 stars.' 'Lincoln was the President.' 'Independence Day is in July.'