(Key Concepts 4.1, I, B, 4.1, II, B, 4.2, I, C)
(Key Concepts 4.2, I, A-C, 4.2, II, A-C)
(Key Concepts 4.1, II, D, 4.3, II, D)
(Key Concepts 4.2, III, B – D)
(Key Concepts 4.2, III, A, 4.3, I, B)
(Key Concept 4.1, I, C-D)
(Key Concept 4.3, II, A-B)
(Key Concept 4.1, II, A)
(KEY CONCEPT 4.1, III, C)