1
B
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C
3
B
4
C
5
B
6
A
7
D
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C
9
D
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D
11
C
12
D
13
D
14
A
15
D
16
A
17
D
18
A
19
C
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B
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C
22
B
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D
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D
25
B
PhysicsAndMathsTutor.com
26
B
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A
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B
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B
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C
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B
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A
33
D
34
A
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B
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C
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B
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B
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B
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C
42
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43
D
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B
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B
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A
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A
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A
49
D
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D
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B
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D
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B
PhysicsAndMathsTutor.com