After germinating and planting my seed. My plant is a little bit over 3 inches and a week and a half old. The stem had grown quite long due to lack of light, (growing on my window sill) also someone explained something to me about red rays promoting growth. Reguardless, how can I fix this, the plant is beginning to lean, should I: a. Bury the stem deeper with more soil? B. Get a proper light source so It can stop stetching for light.