The total number of crystal systems associated with the 14 Bravais lattices is 7 . These crystal systems are categorized based on the axes lengths and angles between them. Here is the list of crystal systems and the corresponding Bravais lattices: Cubic (3 Lattices): Simple cubic, body-centered cubic, and face-centered cubic. Tetragonal (2 Lattices): Simple tetragonal and body-centered tetragonal. Orthorhombic (4 Lattices): Simple orthorhombic, base-centered orthorhombic, body-centered orthorhombic, and face-centered orthorhombic. Hexagonal (1 Lattice): Simple hexagonal. Rhombohedral (1 Lattice): Also known as trigonal. Monoclinic (2 Lattices): Simple monoclinic and base-centered monoclinic. Triclinic (1 Lattice): Simple triclinic. Therefore, the correct answer is: Option A: 7