According to the Punnett Square and the information given above, the probability of offspring that will be unable to roll the tongue is 0%. Thus, option A is correct.
What is Probability?
Probability may be defined as something that is likely to happen at random. It is the likelihood of any event.
For determining the ability to roll the tongue, only one dominant allele is required but to possess an inability to roll the tongue both the recessive alleles of a trait are required for the expression.
Therefore, it is well described above.
To learn more about Dominant and recessive traits, refer to the link;
https://brainly.com/question/848027
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