This one is for the gay girls ... (This is jokes not a riddle) Do you want to hear a joke about my v/a/g/i/n/a.. Never mind you'll never get it... I- mean like that could change tho

Why did the artist of the above image use such bold lines and colors on the trees? a. to create a more realistic interpretation b. to suggest spring and to heighten emotional tensions c. to mimic the motion of the figures d. all of the above