Final answer:
Hereditary hemorrhagic telangiectasia, also known as Osler-Weber-Rendu syndrome or Rendu-Osler-Weber syndrome, is the correct diagnosis for the symptoms listed, including diffuse telangiectasias and recurrent nosebleeds.
Step-by-step explanation:
The condition described by symptoms such as diffuse telangiectasias, recurrent epistaxis (nosebleeds), arteriovenous malformations (AVMs), and oral lesions is known as Hereditary hemorrhagic telangiectasia (HHT), which is also called Osler-Weber-Rendu syndrome or Rendu-Osler-Weber syndrome. This is an autosomal dominant genetic disorder that affects the blood vessels and can lead to significant bleeding. It is not related to idiopathic juxtafoveal retinal telangiectasia, nor is it one of the conditions listed such as Ehlers-Danlos syndrome, familial hypercholesterolemia, or other hereditary diseases like hemophilia. The correct answer to the question is a) Hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu syndrome) which is synonymous with d) Rendu-Osler-Weber syndrome.