SPF 15 sunscreens block about:
A) 94 per cent of UVB light, and allow for 6 per cent penetration.
B) 95 per cent of UVB light, and allow for 5 per cent penetration.
C) 96 per cent of UVB light, and allow for 4 per cent penetration.
D) 97 per cent of UVB light, and allow for 3 per cent penetration.
Correct Answer:
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