Consider the following statements for Nano-technology:
1.It is the technology of creating materials and devices atom-by-atom.
2. Physical properties change at the nanometer scale.
3. Chemical properties change at the nanometer scale.
Which of the above statements are correct?
(a) 1 and 2 only
(b) 1 and 3 only
(c) 2 and 3 only
(d) 1, 2 and 3