Subtract the sum of A and B from C Where \[A=\frac{3}{7}{{p}^{2}}{{q}^{2}}r-\frac{4}{5}pq{{r}^{2}}+\frac{3}{2}pqr+\frac{1}{21}{{p}^{2}}qr\] \[B=\frac{1}{14}pq{{r}^{2}}+\frac{2}{7}{{p}^{2}}qr-\frac{3}{5}{{p}^{2}}{{q}^{2}}r+pqr\] And \[c=\frac{3}{10}pqr-\frac{4}{7}r{{p}^{2}}q+\frac{2}{7}pq{{r}^{2}}-\frac{4}{5}{{p}^{2}}r{{q}^{2}}\]

• A. \[\frac{1}{105}[-66{{p}^{2}}{{q}^{2}}r+112pq{{r}^{2}}+162pqr+170{{p}^{2}}qr]\]
• B. \[\frac{1}{210}[-132{{p}^{2}}{{q}^{2}}r+213pq{{r}^{2}}-462pqr-190{{p}^{2}}qr]\]
• C. \[\frac{1}{210}[-232{{p}^{2}}{{q}^{2}}r+203pq{{r}^{2}}+362pqr+170{{p}^{2}}qr]\]
• D. \[\frac{1}{105}[-166{{p}^{2}}{{q}^{2}}r-112pq{{r}^{2}}+462pqr-171{{p}^{2}}qr]\]
• E. None of these