Which of the following statements are not correct?(i) After Balban's death his son Bughra Khan assumed sovereignty in Lakhnauti(ii) Alauddin Khalji extended his authority to Bengal(iii) Ghiyasuddin Tughluq made Bengal part of the Delhi sultanate in 1324(iv) Firuz Shah Tughluq invaded Bengal twice during the reign of Shamsuddin Iliyas Shah. Select the correct answer from the codes given below:Codes :

• A. (ii) (iii) (iv)
• B. (ii) (iv)
• C. (ii) (iii)
• D. (iii) (iv)