According to Pi, a zookeeper will know he or she has created a healthy environment for the animals WHEN THE ANIMALS REPRODUCE.
For animals to reproduce and give birth to young ones, many things has to be in place, such as suitable partners, right environment, right food, etc. Animals naturally reproduce when the environment is favorable unto them. Thus, reproduction of animals in the zoo shows that the right environment has been created for the animals.
Prefix: affix added to the beginning of a word.
combining form: a word part which must attach to a word in order to be useable in a word.
suffix: affix added to the end of a word.
inflection: affix that gives grammatical meaning such as tense or number.
affix: syllable added to a root word to change its meaning.
comparative: degree of comparison formed by adding (er).
love: root word of lovable.
superlative: degree of comparison formed by adding (est).
bound morpheme: modified form of a word that occurs only in combination.
free morpheme: an independent word.
Answer:
C. A dual enrollment course
Explanation: