Solution:(b) The doctor advised Jaya, "From tomorrow put the eye drops into your eyes four times a day. (Correct) Next day tomorrow, Her → you(a) The doctor had advised Jaya, "From the next day you put the eye drops into your eyes four times a day. (Incorrect reporting verb)
(c) The doctor advises Jaya, "From the next day put the eye drops into your eyes four times a day. (Incorrect reporting verb)
(d) The doctor advised Jaya, "From tomorrow put the eye drops into her eyes advised Jaya day. (Incorrect pronoun in reported speech)