The “Morning Star” is the name given to (d) planet Venus.
Explanation: Venus is often visible in the morning sky before sunrise, due to its proximity to the sun, making it appear as the “morning star”.
Why other options are incorrect:
(a) pole star: The “pole star” refers to Polaris, the North Star, which is visible at night and not in the morning.
(b) star Sirius: Sirius is a bright star, but it’s not typically called the “Morning Star”.
(c) planet Jupiter: While Jupiter can be visible at times in the morning sky, it’s not as bright as Venus and is therefore not commonly referred to as the “Morning Star”.