Which spacecraft series, first launched in 1967, has carried crews to orbit for nearly six decades and remains the primary vehicle for transporting astronauts to the International Space Station?

• A Soyuz ✓
• B Progress
• C Salyut
• D Buran

The Soyuz spacecraft has undergone multiple iterations and has flown over 140 crewed missions, making it the most frequently used crewed spacecraft in history.