Correct option is D
The correct indirect speech is (d).
Explanation:
The given sentence is an
interrogative sentence.
While changing to indirect speech:
· The reporting verb said changes to
enquired.
·
‘of’ is used with enquired.
· Question form changes into
statement form.
· Present Continuous (are working) changes to Past Continuous (was working).
Correct indirect speech:
Kewal enquired of Lata why she was working so hard.
Rules used:
· Interrogative → asked/enquired
· Remove question mark
· Change tense according to sequence of tenses