A rhythmic group or metrical unit that contains a fixed number of beats, divided on the musical staff by bar lines. Also known as Bar.
The correct answer should be A. naturalism.
Naturalism is a literary movement which comes from realism, meaning that it is trying to convey realistic images, without the use of poetic language and escapism. Endless melody and grand opera aren't literary movements, and romanticism is quite opposite of naturalism - it emphasizes poetic language and escapism rather than realism.
Kim Hee-chul, better known by the mononym Heechul, is a South Korean singer, songwriter, presenter, and actor.
Min Kyung-hoon is a South Korean singer. He is the lead vocalist of the band Buzz. His first solo album, Im·pres·sive, was released on December 5, 2007. His second solo album, Picnic, was released on June 27, 2011.