 
<translate> Radius na wani mazugi ne 4 m, tsawo 5 m. Gano yanki mai lankwasa? Zaɓuɓɓuka: (A) Na farko (B) 3 (C) 5 (D) 7 (E) 9 Tsarin hankali na farko, sa'an nan kuma yanke shawara: <eng> The radius of a cone is 4 m, height 5 m. Find the curved surface area?
Options:
(A) 1
(B) 3
(C) 5
(D) 7
(E) 9 Stream of consciousness first, then make a decision: 