The correct answer is option 3, Venus. Venus is often referred to as the evening star because, from Earth, it is often one of the brightest objects in the sky after the sun sets. This is because Venus is the second planet from the sun and is located closer to the sun than Earth. Due to its proximity to the sun, Venus is visible primarily during the evening and morning hours. Additionally, Venus is known for its highly reflective clouds, which further contribute to its brightness in the night sky. It is important to note that while Venus is commonly referred to as the evening star, it is not actually a star but a planet.