When looking for a root word you want to locate the part of the word that doesn't include prefixes or suffixes. The root of exventare is 'vent', which is seen in the word ventilator.
The definition also aligns with the root word (ventus, meaning wind), because a ventilator is a type of fan that allows air to exit a room. In medicine, it is also a device that helps a person breathe--allowing air to enter and exit their bodies.
Answer: indirect object
Explanation:
From the sentence "Sylvia bought her mother a beautiful necklace on her birthday", mother is an indirect object.
We can see that even though"mother" isn't the direct object which in this case is the necklace, she is the indirect object as the mother will be the one to receive the necklace. She is affected by the action that occurs in the sentence as she is the recipient.