In A+ B– ionic compound, radii of A+and B– ions are 180 pm and 187 pm respectively. The crystal structure of this compound will be

Limiting radian Ratios r x r CN Shape ex 0.155 x 2 Linear BeF₂ 0.155 0.255 x 3 Planar AlC₃ triangular 0.225 0.414 x 4 Tetrahedron ZnS 0.414 0.732 x 6 Octahedron NaCl 0.732 0.996 x 8 Body centre cubic CsCl Here in given statement. / 0.96256 r r = CsCl type