| a | 20 |
| b | 30 |
| c | 40 |
| a | 30 |
| b | 40 |
| c | 30 |
| a | 40 |
| b | 100 |
| c | 40 |
| a | 80 |
| b | 110 |
| c | 20 |
| a | 80 |
| b | 110 |
| c | 20 |
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