The reaction of an acid chloride with an aromatic compound in the presence of a Lewis acid to give an acylated aromatic compound is called Friedel-Crafts acylation reaction. It proceeds through a carbocation. The stability of the carbocation is important in determining the product. A carbocation may decompose or rearrange favourably to form another stable carbocation. The major product ( X ) of the following reaction is

• Correct answer
  A

  
  
• B

  
  
• C

  
  
• D

  
  

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