I want to solve this

O e, The neighbourhood M [(3, 4)] in R4 is best described as Select one: a. The open square with diagonal 1 and centre (3, 4). b. The open interval centered at (3, 4). O c. The open sphere with radius 1 and centre (3, 4, 0) O d. The open cube with sides 1 and centre (3, 4, 0). O e. The open disk with radius 1 and centre (3, 4)