Given below are two statements:
Statement $I:$ Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.
Statement $II:$ Exarch condition is the most common feature of the root system.
In the light of the above statements,choose the correct answer from the options given below:

• A
  Statement $I$ is incorrect but Statement $II$ is true.
• B
  Both Statement $I$ and Statement $II$ are true.
• C
  Both Statement $I$ and Statement $II$ are false.
• D
  Statement $I$ is correct but Statement $II$ is false.