This element is the product of adding a root to a combining vowel prefix
suffix
root
combining form

combining form

Explanation:

Combining Form is a medical-related that describes a compound word which is an outcome of the addition of a word root and a combining vowel. In some other cases, it can be a result of a word root and a suffix that starts with a consonant.

Hence, in this case, the correct answer is COMBINING FORM is the element that happens to be the product of adding a root to a combining vowel

loris malaguzzi was the founder of reggio emilia’s educational philosophy and together with the comune and many local administrators he participated in the birth and building of reggio emilia’s network of municipal preschools (3-6) and infant-toddler centres (0-3).