負う, おう
Godan verb, Transitive, See 背負う・1
1. to bear, to carry on one's back
2. to take responsibility for, to accept a duty
3. to receive (wound), to incur (damage), to be injured
4. to owe
あなたはその結果に責任をおわなければならない。
のか
Particle, sentence ending particle
1. endorsing and questioning the preceding statement
2. lamenting reflections on the preceding statement
何の話をしてるのか分からないよ。