Study the given pattern carefully and select the figure that will complete the pattern given in the question figure.

The missing figure can be filled by option (c) appropriately. It is highlighted by the red colour and given below.

It can also be solved by eliminating options one by one.

The required slant line as per the pattern from the corner is available in options (a) and (c). So the other two options are eliminated.

After that now, the required arc as per the pattern is available in only option (c) which will be our answer.