Correct Answer: Option C

Explanation

Both statements in options B and C are not correct based on the biological principles of sex-linked inheritance: 

Males cannot be carriers: Because colour blindness is an X-linked recessive trait and males have only one X chromosome, they will always express the condition if they possess the gene. They cannot "carry" it without being affected.

Females can be carriers: Females have two X chromosomes. If they have the gene on only one of these chromosomes, they do not express the condition but can pass it to their offspring. 

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