The Euler's Method Solution For $y ( 0.2 )$ Of $y ^ { \prime \prime } + y = 0 , y ^ { \prime } ( 0 ) = 1$

Multiple Choice

The Euler's method solution for $y ( 0.2 )$ of $y ^ { \prime \prime } + y = 0 , y ^ { \prime } ( 0 ) = 1$ using $h = 0.1$ is

A) 0.14
B) 0.2
C) 0.21
D) 0.11
E) 0.12