Match the following :
$\begin{array}{clcl} & \textbf{List-I} & & \textbf{List-II}\\ \text{(a)} & \text{Flood Gun} & \text{(i)} & \text{An electron gun designed to flood the}\\ &&& \text{entire screen with electrons.} \\ \text{(b)} & \text{Collector} & \text{(ii)}& \text{Partly energized by flooding gun, stores} \\ &&&\text{the charge generated by the writing gun.} \\ \text{(c)} & \text{Ground} & \text{(iii)} & \text{Used to discharge the collector.} \\ \text{(d)} & \text{Phosphorous Grains} & \text{(iv)} & \text{Used in memory - tube display and similar} \\ &&&\text{to those used in standard CRT.} \\ \text{(e)} & \text{Writing Gun System} & \text{(v)} & \text{Used in memory - tube display and basically} \\&&& \text{the same as the electron gun used in a } \\ &&&\text{conventional CRT.} \\ \end{array}$
$\textbf{Codes :}$
- $\text{(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv), (e)-(v)}$
- $\text{(a)-(ii), (b)-(iii), (c)-(i), (d)-(iv), (e)-(v)}$
- $\text{(a)-(iii), (b)-(i), (c)-(ii), (d)-(v), (e)-(iv)}$
- $\text{(a)-(iv), (b)-(v), (c)-(i), (d)-(ii), (e)-(iii)}$