Kim Won-sik (Hangul: , born February 15, 1993) better known by his stage name Ravi (Hangul: ), is a South Korean rapper, singer-songwriter, producer, signed under Jellyfish Entertainment. He is a member of the South Korean boy group VIXX and VIXX sub-unit VIXX LR. He debuted as a solo artist on January 9, 2017, with the release of his debut mini album "R.EAL1ZE".

Can we draw the following conclusion?
Won-sik went solo due to conflicts within

Choose your answer from:
[a]. Yes
[b]. It's impossible to say
[c]. No
[b].