Diseases spread through water medium $- P$
Diseases spread through air medium $- Q$
Diseases spread through insect vectors $- R$
$I -$ Common cold,$II -$ Amoebiasis,$III -$ Typhoid,$IV -$ Filariasis
$V -$ Pneumonia,$VI -$ Malaria,$VII -$ Ascariasis
Select the correct option for $P, Q$ and $R$.
$\quad P \quad\quad Q \quad\quad R$

• A
  $II, III, VII \quad I, V \quad IV, VI$
• B
  $IV, VI \quad I, V \quad II, III, VII$
• C
  $II, IV \quad I, V, VI \quad III, VII$
• D
  $II, IV \quad III, VII \quad I, V, VI$