Evaluate the following statements regarding $T$. $W$. Engelmann's experiment:
$1.$ $T$. $W$. Engelmann stated that chlorophyll present in algae absorbs light of green and orange colors,splits water molecules by photolysis,and releases $O_2$.
$2.$ Aerobic bacteria accumulate near the algae to utilize the released $O_2$.

• A
  $1, 2$ true
• B
  $1, 2$ false
• C
  $1$ true,$2$ false
• D
  $1$ false,$2$ true