What is responsible for this intercellular interaction in higher plants

"xylem and phloem" is the one among the following choices given in the question that is responsible for this intercellular interaction in higher plants. he correct option among all the options that are given in the question is the third option or option "C". I hope that this answer has actually come to your help.

 

No because the eaeht is on a 23.5 degree axis tilt and so when it is winter the northern hemisphere is pointing away from the sun and the soutubern hemisphere is pointing toward the sun

only b