Figure 1 Shown Below Is the Structure of Caffeine in the Centre

question 12

Multiple Choice

Figure 1
Shown below is the structure of caffeine in the centre and two different resonance states I and II with lone pairs and formal charges omitted.
-Referring to Figure 1,how many lone pairs of electrons can be found on the nitrogen atom at C?

• A)0
• B)1
• C)2