Final answer:
The correct hyphenation of the word "constructive" is "Con-struct-ive", which follows the syllable boundaries of the word.
Step-by-step explanation:
The word "constructive" can be divided by hyphens based on syllables and the correct way to hyphenate this specific word would be option c: Con-struct-ive. This is because the syllables in "constructive" are divided as "con-struct-ive" with the hyphens placed at the syllable boundaries. Hyphens are typically used to join two or more words serving as a single modifier before a noun or to clarify how multiple modifiers function before a noun.