Which statement best describe the difference between a gene and an allele

a. an allele is a section of a gene. a gene is a section of dna that usually contains the code for a specific trait.

b. a gene is one of two or more variants of allele. an allele is a section of chromosome that usually contains the code for a particular protein.

c. an allele is one of two or more variants of a gene. a gene is a section of chromosome that usually contains the code for a particular protein.

d. a gene is a section of an allele. an allele is a section of dna at usually contains the code for a specific protein that determines a specific trait. i need an answer as soon as possible in advance