Which of the following correctly represents a heterozygous individual?

Question

Quizplus · Accepted Answer

For every trait expressed in a sexually reproducing organism, there are at least two alternative versions of a gene, called alleles. 
An allele is a variant form of a given gene. Sometimes, different alleles can result in different observable phenotypic traits, such as different pigmentation.  
If the pair of chromosomes have different alleles at the locus, then the organism is said to be heterozygous for that characteristic.  
When representing the genotype of an individual the upper case letter is always written before the lower case letter. Heterozygous are organisms that contain two different alleles of a gene. 
HH = dominant homozygous
Hh = heterozygous
hh = recessive homozygous

Which of the Following Correctly Represents a Heterozygous Individual