In the given statements, select the correct option for the process of decomposition.
$(1)$ Moist environment favours decomposition.
$(2)$ Low temperature and anaerobiosis inhibit decomposition.
$(3)$ Decomposition is slower, if detritus is rich in nitrogen.
$(4)$ Decomposition is quicker if detritus is rich in chitin.
$(5)$ Warm environment favours decomposition.

• A
  $1, 5$ are true
• B
  $3, 4, 5$ are true
• C
  $1, 2, 5$ are true
• D
  $1, 2, 3, 5$ are true