The Solution of the Problem Given in the Previous Problem $x = 15 - 15 ( 1 - 4 \sqrt { 10 } t / 15 ) ^ { 2 }$

Multiple Choice

The solution of the problem given in the previous problem is

A) $x = 15 - 15 ( 1 - 4 \sqrt { 10 } t / 15 ) ^ { 2 }$
B) $x = 15 / 2 - 15 ( 1 - 4 \sqrt { 10 } t / 15 ) / 2$
C) $x = 15 / 2 - 15 ( 1 - 2 \sqrt { 10 } t / 15 ) ^ { 2 } / 2$
D) $x = 15 / 2 - 15 ( 1 - 4 \sqrt { 10 } t / 15 ) ^ { 2 } / 2$
E) $x = 15 - 15 ( 1 - 4 \sqrt { 10 } t / 15 )$