Lequel de ces mots a le son /t/ final ?

The question asks which word has a pronounced final /t/ sound. The answer is Petite.

In French pronunciation, a final consonant is generally silent unless it is followed by an "e" (or in certain other specific cases). This is a fundamental rule of French phonetics:

• Petite /pə.tit/ - The final "-te" means the "t" is pronounced because it is followed by the letter "e." The final /t/ sound is clearly heard.
• Patient /pa.sjɑ̃/ - The "-ent" ending is a nasal sound; the "t" is silent.
• Part /paʁ/ - The final "t" is silent in standard French pronunciation.
• Petit /pə.ti/ - The final "t" is silent (it is only pronounced in liaison before a vowel, e.g., petit ami).

The key rule to remember: in French, a final consonant followed by the letter "e" is typically pronounced. This is why the feminine forms of adjectives often sound different from their masculine forms (e.g., petit vs. petite, grand vs. grande).