B.) her
this is the correct grammar term as all the other options make no sense
His mother combed his hair and washed him and told him a bedtime story
Explanation:( I don't know sorry
Because I talked to them about how I felt after I failed my test, they comforted me.
Example: You cried to a friend about a bad grade and they told you about how smart you are. (Not sure if this was too helpful haha)