In this question,

$$\begin{gathered} \begin{array}{l}\Rightarrow \text{23}\times \text{15}-\text{60 + ?}÷\text{31 = 292}\\ \Rightarrow \text{\hspace{0.17em}345}-\text{60 + ?}÷\text{31 = 292}\\ \Rightarrow \text{285 + ?}÷\text{31 = 292}\\ \Rightarrow \text{\hspace{0.17em}?}÷\text{31 = 7}\\ \Rightarrow \text{\hspace{0.17em}? = 7}\times \text{31}\end{array} \\ \Rightarrow \text{217} \end{gathered}$$

Hence, Option C is correct.