Fine the simplified value of $$\left[ \left( 17 \times 3 \right) \times \left\{ 7 \div 7 \times \left( 18 - \frac{14}{2} \right) \right\} \right]$$.​

Correct option is C

Given: ​

​$$\left[ \left( 17 \times 3 \right) \times \left\{ 7 \div 7 \times \left( 18 - \frac{14}{2} \right) \right\} \right]$$ 

Concept Used: ​

Solution: ​

​$$\left[ \left( 17 \times 3 \right) \times \left\{ 7 \div 7 \times \left( 18 - \frac{14}{2} \right) \right\} \right] \\ \ \\ = \left[ \left( 17 \times 3 \right) \times \left\{ 1 \times \left( 11 \right) \right\} \right]\\ \ \\ = \left[ \left( 51 \right) \times \left\{ 11 \right\} \right]\\ \ \\ = 561$$​​