Which of the following is invalid field name? A. Student.Address B. Student’sAddress C. Student_Address D. Student Address

The correct answer is: B. Student’sAddress

A field name cannot start with a number or special character. It cannot also contain spaces.

Option A, Student.Address,

Option C, Student_Address, is a valid field name because it does not start with a number or special character and does not contain spaces.

Option D, Student Address, is a valid field name because it does not start with a number or special character. However, it contains a space, which is not allowed in a field name.