MERRY CHRISTMAS! What does an organism's phenotype describe?

the allele combination for a trait
the physical appearance of a trait
the number of alleles on a gene
the number of different traits inherited
(just so it isn't taken down, you can take free points tho)

B.

Explanation:

The allelic combination of the organism is known as its genotype. The genotype is responsible for determining the traits (phenotype) of the organism. However, these traits are not solely determined by the genotype but rather the interaction between the genotype and the environment in which the organism exists.