A) a | B) b |

C) c | D) d |

Explanation:

In each row (as well as each column), the third figure is a combination of all the elements of the first and second figures.

A) 1 | B) 4 |

C) 3 | D) 2 |

A) 2 | B) 3 |

C) 4 | D) 1 |

Explanation:

By observing the above pattern Figure (3) will complete the matrix.

A) 4 | B) 3 |

C) 2 | D) 1 |

Explanation:

Similar small figures are increasing by one in each of the bigger figure.

A) 3 | B) 1 |

C) 2 | D) 4 |

Explanation:

The third figure in each row comprises of parts which are not common to the first two figures.

A) 4 | B) 1 |

C) 2 | D) 3 |

Explanation:

In each row, the third figure is a collection of the common elements (line segments) of the first and the second figures.

A) 2 | B) 4 |

C) 3 | D) 1 |

Explanation:

In each row, the second figure is obtained from the first figure by adding two mutually perpendicular line segments at the centre and the third figure is obtained from the first figure by adding four circles outside the main figure.

A) 4 | B) 3 |

C) 2 | D) 1 |

Explanation:

In each row, the third figure is a collection of the common elements (line segments) of the first and the second figures.

A) a | B) b |

C) c | D) d |

Explanation:

There are 3 types of shadings in the triangles, 3 types of legs, 3 positions of circles, each of which is used only once in a single row. The circle is shaded in alternate figures.