B is the correct answer because none of this that you put are testable.
1. Phenotypic
A phenotype is the physical representation of a gene. (Think Ph = Physical. That's how I remember it!)
2. Genotypic?
A genotypenis the gene. It is not seen physically.
3. Genes
Alleles are variant forms of a singular gene.
Chlamydia is a disease transmitted by sex with someone infected. Its caused by bacteria and often is asymptomatic.
Treatment is with antibiotics, and it's essential to know if one is infected because in women can cause infertility, and in males can cause urethra complications like inflammation and obstruction.
