Select the figure from among the given options that can replace the question mark (?) in the following series?

In 1st fig 7 lines combines to made a shape
In 2nd fig. 6 lines combines to made a shape
In 3rd fig. 5 lines join together to form a shape
And in 4th fig. 4lines join together to form a shape
Same as it is by follow the pattern in next fig. 3 lines are join together to form a shape
Hence the answering fig. will be :