Identify the INCORRECT statements from the following:
A. Notation \( {}_{12}^{24}Mg \) represents 24 protons and 12 neutrons.
B. Wavelength of a radiation of frequency \( 4.5 \times 10^{15} s^{-1} \) is \( 6.7 \times 10^{-8} m \).
C. One radiation has wavelength \(=\lambda_1(900 nm)\) and energy \(= E _1\). Other radiation has wavelength \(= \lambda_2(300 nm)\) and energy \(= E _2 \cdot E _1: E _2=3: 1\).
D. Number of photons of light of wavelength 2000 pm that provides 1 J of energy is \( 1.006 \times 10^{16} \).
Choose the correct answer from the options given below:

1. A A and D only
2. B A and C only
3. C A and B only
4. D B and C only