The correct option is D 1
Answer is option (D)
Explanation:
In the above series 3 as added to form a next number and 4 is subtracted from it to form next number next to it
4+3=7
7−4=3
3+3=6
6−4=2
2+3=5
Hence continuing series next number will be
5−4=1
The correct answer is 1