Which one of the following is an example of pleiotropy?

In humans,the gene responsible for Phenylketonuria produces multiple phenotypic expressions,collectively known as a syndrome. This gene causes mental retardation,broad incisor teeth,skin pigmentation,and excessive sweating. What is this type of gene called?

$A$ pleiotropic gene

The metabolic disorder Phenylketonuria is an example of which type of genetic effect?

$A$ single gene can exhibit multiple phenotypic expressions; this is called.....

$A$ : Myotonic dystrophy is caused by a recessive mutant pleiotropic gene.
$R$ : Gene mutation leads to more synthesis of fibrillin proteins.