Mention the most symmetrical and most unsymmetrical crystal system

The most unsymmetrical crystal system is :

Name the most unsymmetrical crystal system.

The most unsysmmetrical and the most symmetrical crystal systems based on lattice parameters ( i.e., unit cell lengths and angles ) , are respectively represented by the examples.

Name the most symmetrical crystal system.

Name the most symmetrical crystal system.

Which of the following given crystal system is the most symmetrical and the most unsymmetrical system respectively?