To determine which figure completes the figure matrix, let's analyze the patterns present in the given matrix:

1. Observe each row in the matrix carefully:
   • The first row consists of three distinct patterns: a vertical and horizontal cross, a star with six lines, and four small circles inside a cross.
   • The second row shows a square with its diagonals, followed by a bordered square with small triangles, and a similar shape rotated 45 degrees.
   • The third row contains a plus sign, a star with six diagonals, and a missing figure.
2. Next, identify a common rule or pattern transformation across rows:
   • The figures in each row appear to involve rotations or combinations of elements seen in the first row.
   • The third column in each row seems to modify the previous figures by adding, subtracting, or rotating elements.
3. Given these observations, the missing figure can be deduced to be a cross with additional alterations similar to those in the previous figures of the third row.

Conclusion: The figure that fits this explanation and completes the matrix is the first option provided in the answer choices.