Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?

a. Acetyl chloride/pyridine followed by reaction with conc. H2SO4 + conc.HNO3
b. Acetic anhydride/pyridine followed by conc. H2SO4 + conc. HNO3
c. Dil. HCI followed by reaction with conc. H2SO4 + conc. HNO3
d. Reaction with conc. HNO3 + conc. H2SO4

  

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)