This is the correct form, though you need to be specific and describe who "them" is.
A predicate is the part of the sentence that tells what the subject is all about. A predicate can either be simple or complete. A simple predicate is the main verb used in the sentence; whereas, a complete predicate includes the main verb and its complements. In the given sentence above, the simple predicate is the verb "teach".
Answer:
A communication breakdown is defined as a failure to exchange information, resulting in a lack of communication.
Explanation: