In an experiment with a facultative aerobic bacterial species, identical number of cells were inoculated in two 500 ml jars $(\mathrm{M}$ and N$)$ with 250 ml volume of media in each. Both the jars contained the same concentration of glucose as the only energy source. Jar M was incubated in airtight conditions while N was maintained in aerobic conditions. Both the jars were kept in a sterile chamber and all other conditions of incubation were kept the same. The correct plot that depicts the growth patterns of these bacterial cultures in M (grey dotted line) and N (blue solid line) is

• Correct answer
  A

  
  
• B

  
  
• C

  
  
• D

  
  

Hence, the correct answer is option: 'A'.