Pronunciation:

1. D. beauty (The underlined part "ea" in "beauty" is pronounced differently from the "or," "o," and "e" in the other words.)

2. D. mechanic (The underlined part "e" in "mechanic" is pronounced differently from the "a" in the other words.)

3. A. laughed (The "ugh" in "laughed" is pronounced differently from the "or," "ai," and "e" in the other words.)

II. Stress:

1. A. remote (The primary stress is on the second syllable in "remote," whereas it is on the first syllable in the other words.)

2. B. elegant (The primary stress is on the first syllable in "elegant," while it is on the second syllable in the other words.