Focus on Vocation of the Apostles and analyze the History.
In 1481 a group of  Florentine painters left for Rome, where they had been called as part of the reconciliation project between Lorenzo de' Medici, the de facto ruler of Florence, and Pope Sixtus IV. The Florentines started to work in the Sistine Chapel as early as mid-1481, along with Pietro Perugino, who was already there.
The theme of the decoration was a parallel between the Stories of Moses and those of Christ, as a sign of continuity between the Old and the New Testament. A continuity also between the divine law of the Tables and the message of Jesus, who, in turn, chose Peter (the first alleged bishop of Rome) as his successor: this would finally result in a legitimation of the latter's successors, the popes of Rome.
Two frescoes are certainly  by Ghirlandaio, the Vocation of the Apostles and the Resurrection, which was  repainted in the late 16th century due to extensive damage. A third, The Crossing of the Red Sea, in the "Stories of Moses" wall, has been assigned to one among Ghirlandaio, Biagio d'Antonio or Cosimo Rosselli.
Biagio d'Antonio Sistine Chapel Florence Old Jesus Moses bishop of Rome Rome Pope Sixtus IV Christ Pietro Perugino New Testament Peter Lorenzo de' Medici Cosimo Rosselli The Crossing of the Red Sea