Arrange the steps for obtaining the acid-soluble and acid-insoluble fractions in the correct sequence.
$I -$ Filtration
$II -$ Slurry (paste)
$III -$ Grinding with trichloroacetic acid
$IV -$ Taking living tissue
$V -$ Obtaining acid-soluble and acid-insoluble fractions

• A
  $IV \rightarrow III \rightarrow II \rightarrow I \rightarrow V$
• B
  $IV \rightarrow III \rightarrow I \rightarrow II \rightarrow V$
• C
  $IV \rightarrow II \rightarrow III \rightarrow I \rightarrow V$
• D
  $IV \rightarrow II \rightarrow I \rightarrow III \rightarrow V$