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Examine the following statements:
1. All colours are pleasant
2. Some colours are pleasant
3. No colour is pleasant
4. Some colours are not pleasant
Given that the statement 4 is true, what can be definitely concluded?

Options

(a)

1 and 2 are true

(b)

1 is false

(c)

2 is false

(d)

3 is true

Answer

(B)