Select the correct passive form of the given sentence.I owe a big debt of gratitude to my mentor, Ms. Pallavi Dutta. (a) A big debt of gratitude had been owed by me to my mentor,Ms. Pallavi Dutta (b) A big debt of gratitude was owing by me to m y mentor,Ms. Pallavi Dutta. (c) A big debt of gratitude will be owed by to my mentor, Ms. Pallavi Dutta. (d) A big debt of gratitude is owed by me to my mentor, M s Pallavi Dutta.

Options

A. A big debt of gratitude had been owed by me to my mentor,Ms. Pallavi Dutta
B. A big debt of gratitude was owing by me to m y mentor,Ms. Pallavi Dutta.
C. A big debt of gratitude will be owed by to my mentor, Ms. Pallavi Dutta.
D. A big debt of gratitude is owed by me to my mentor, M s Pallavi Dutta.

Explanation

(d) A big debt of gratitude is owed by me to my mentor, Ms Pallavi Dutta. (Correct) (a) A big debt of gratitude had been owed by me to my mentor,Ms. Pallavi Dutta. (Tense has changed) (b) A big debt of gratitude was owing by me to my mentor,Ms. Pallavi Dutta. (Tense has changed) (c) A big debt of gratitude will be owed by to my mentor, Ms. Pallavi Dutta. (Tense has changed)