Consider the following statements: (a) Colour blindness can be cured. (b) Astigmatism is a defec...

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Consider the following statements:
(a) Colour blindness can be cured.
(b) Astigmatism is a defect in which on eye cannot view all the directions with equal clarity.
Which of these statement(s) is/are correct?
a. (a) only
b. (b) only
c. Both (a) and (b)
d. Neither (a) nor (b)
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