Which three are valid declarations of a char? char c1 = 064770; char c2 = 'face'; char c3 = 0xbeef; char c4 = \u0022; char c5 = '\iface'; char c6 = '\uface';

• A. 3, 5
• B. 1, 2, 4
• C. 5 only
• D. 1, 3, 6