Which of the following is a popular 20th-century horror film?

The Omen released in 1976 tells the story of American diplomat Robert Thorn (Gregory Peck) and his wife Kathy (Lee Remick) and the loss of their baby boy at birth. That's when Robert secretly adopts a baby whose mother died in childbirth. They named that child Damien. Father Brennan (Patrick Troughton) warns Robert that Damien is the son of Satan and that Kathy is pregnant again, but her unborn child will die if Damien stays alive. Later, a series of unfortunate events happen where Father Brennan gets killed by a falling pole, and Damien pushes Kathy off a balcony, which causes a miscarriage. As more people die, things point toward Damien as the Antichrist. The Omen won an Academy Award for Best Original Score.

Source: Collider