To determine the correct option to complete the given figural series, we need to analyze the pattern in the sequence of images.

1. Observe the sequence: 
   - Each box contains a set of symbols arranged within circles and triangles.
   - The sequence of symbols in each box follows a specific pattern.
2. Analyze the rotation: 
   - The symbols within circles and triangles seem to rotate in each subsequent figure.
3. Examine the progression: 
   - The symbols move consistently with each step to create a pattern.

Based on this analysis, we can deduce that the option with the correct position and orientation of symbols to continue this pattern is:

This option matches the observed rotational and positional pattern of the sequence.