Final answer:
In Ovid's Heroides, Medea kills two of the children she bore to Jason, which is option C) Two.
Step-by-step explanation:
According to Medea in Ovid's Heroides, the answer to how many of the children she bore to Jason did she kill is C) Two. In the myth, Medea is known for the tragic act of killing her own children as a form of revenge against Jason, who betrayed her by deserting her for another woman. This act is one of the most infamous instances of Medea's character in classical mythology and has been depicted in various works of literature and art. The tragedy of Medea reflects on themes of love, betrayal, and revenge in Greek mythology and is a significant story in classical literature. It is important to note that the actions of Medea may differ slightly in various retellings of the myth, but in Ovid's Heroides, she kills two children.