Which sentence correctly applies the jussive ending to both verbs?

Conditional Sentences with إِنْ

• إِنْ تَدْرُسُ تَنْجَحُ
• إِنْ تَدْرُسْ تَنْجَحُ
• إِنْ تَدْرُسُ تَنْجَحْ
• إِنْ تَدْرُسْ تَنْجَحْ