Old-fashioned fairy lights used on Christmas trees were connected to each other as part of a series circuit. Explain the difficulty this would cause if one of the bulbs broke and suggest why arranging them in a parallel circuit would be better.

Explanation:

Rhett Allain Fuses in a strand of Christmas lights. If you connect too many strands of lights together then the current will be too large. The fuse will go out to prevent these things from getting too hot. However, sometimes these little fuses just get loose after storing the lights in the off season.

Hope it helps :)

think its the third option

because growing process had stoped after 4-5 year