The correct option is "its use of realism."
The creation of Adam is a fresco on the ceiling of the Sistine Chapel, painted by Michelangelo around the year 1511. It illustrates the biblical episode of Genesis in which God gives life to Adam, the first man. Chronologically it is the fourth of the panels that represent episodes of Genesis on the roof of the chapel, it was one of the last to be completed and is one of the most appreciated and recognized works of art in the world.
God is represented as an old man with a beard wrapped in a ruffled purple tunic, which he shares with some cherubs. His left arm is around a female figure, usually interpreted as Eva, who has not yet been created and, figuratively, waits in the heavens for a place on Earth to be given. God's right arm is stretched out, to impart the spark of life from his own finger to that of Adam, whose left arm is in the same position as God's. The fact that both fingers are separated by a minimum distance is famous. The painting took three to four years to complete.
The identical positions of God and Adam are based on Genesis 1:27, which says that God created man in his image and likeness. At the same time, God, who appears floating in the air, contrasts with the earthly image of Adam, who is lying in a stable triangle of earth. The name of Adam comes from the Hebrew and means man and the feminine form Adamah means Earth.