D. is wrong. It should be "One hero in the animation field is Mel Blanc, the voice behind many cartoon characters." because the information after Mel Blanc is not necessary to the sentence. It's just extra, so you need a comma.
Method 1 Memorizing a Formal Poem
Read the poem aloud several times. ...
Look up words you don't understand. ...
Learn and internalize the “story” in the poem. ...
Look for connections between stanzas or sections. ...
Figure out the poem's meter. ...
Memorize the poem's formal structure. ...
Read the poem aloud again several times.
this is from google okay
My mom she is always ready to sacrifice her everything for the sake of her child. The happiness of her child makes her happy and the tear of her child hurts her the most. She always tries to be the best mother for her child and does everything she thinks good for her child. A mother is the best gift of God to a child.