CREST stands for:
a) Calcinosis, Raynaud's phenomenon, Esophageal dysfunction, Sclerodactyl and Tengiectasi
b) Connective tissue disorder, Rheumatoid arthritis, Esophageal dysfunction, Sclerodactyl and Thrombosis
c) Chronic Respiratory Endocrine System Test
d) Celiac Disease, Renal disorder, Epilepsy, Sclerodactyl and Thyroid dysfunction