Answer:
The most unique feature of “The Ninth” was that Beethoven included chorus and vocal soloists in the final movement. He was the first major composer to do this in a symphony.
 
        
             
        
        
        
Explanation:
The American flag heralded the launch of Apollo 11, the first Lunar landing mission, on July 16, 1969. The massive Saturn V rocket lifted off from NASA's Kennedy Space Center with astronauts Neil A. Armstrong, Michael Collins, and Edwin "Buzz" Aldrin at 9:32 a.m. EDT. Four days later, on July 20, Armstrong and Aldrin landed on the Moon's surface while Collins orbited overhead in the Command Module. Armstrong and Aldrin gathered samples of lunar material and deployed scientific experiments that transmitted data about the lunar environment.
 
        
             
        
        
        
The answer is C, I believe.
        
             
        
        
        
Answer: It took approximately 1,400 years for the Stonehenge to be built
Explanation:
Hi, the Stonehenge is a prehistoric monument located in southern England.
It consists of a ring of approximately 100 standing stones.
Archaeologists estimate that it took approximately 1,400 years for the Stonehenge to be built. It was built  around 5,000 years ago in the late Neolithic Age, during four stages.
Nowadays the Stonehenge is a British cultural icon, and is protected as an ancient monument.