Answer is A.
This is an example Mendel’s dihybrid cross.The law of independent assortment of independent assortment. When two individuals heterozygous for both traits (tail color and eyelash length) having genotype (PpLl) are crossed, four types of individuals are produced. The probability of phenotype combinations of offspring is the ratio 9:3:3:1.
9 - polka-dot tails and long eyelashes
3 - polka-dot tails and short eyelashes
3 - solid tails and long eyelashes
1- solid tail and short eyelash