In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech. The teacher said to the students, "Work hard now if you wish to have a better future."

• The teacher advised the students to work hard then if they wished to have a better future.
• The teacher advised the students to work hard now if they wished to have a better future.
• The teacher advised the students to work hard then if they wish to have a better future.
• The teacher advised the students to work hard now if they wish to have a better future.