This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnosis and Treatment of Retina, Subject name: Ophthalmology
Which of the following is not a difference between Fluorescein Angiography(FA) & Indocyanine Green(ICG) angiography 
Select and explain. 
A. Dyes used, B. Choroidal capillaries are better seen in ICG, C. FA is more sensitive for occult CNVM, D. The wavelength used for viewing is different
C: FA is more sensitive for occult CNVM
Answer: C: FA is more sensitive for occult CNVM 
Explanation: ICG is more sensitive to occult CNVM (Choroidal neovascular membranes) not FA. 1. FLUORESCEIN ANGIOGRAPHY 5 ml of 20 % Fluorescein dye is injected in antecubital vein & serial photographs are taken 2. INDOCYANINE GREEN ANGIOGRAPHY (ICG) New angiography technique to diagnose choroidopathies like occult ARMD, Central Serous Retinopathy(CSR) Polypoidal choroidopathy. Choroidal capillaries are better seen in ICG. In ICG, the optic nerve head is hypo-fluorescent. It is hyperfluorescent on FA. FA ICG