The correct definite article for the noun "histoire" is "la." Here's why:
1. In French, nouns have gender (masculine or feminine). "Histoire" is a feminine noun.
2. When a feminine noun begins with a vowel sound, like the noun "histoire," the definite article used is "la."
3. For example:
- La histoire (incorrect)
- La histoire (correct)
Therefore, the correct definite article for "histoire" is "la."