पर्वतीय क्षेत्र विकास कार्यक्रम की शुरुआत किस पंचवर्षीय योजना में हुई ?
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. a healthy diet and regular exercise
Q. are important habits
R. that help maintain good physical and mental health
S. especially in today's busy world