The gravity of a black hole is so strong that not even light can escape. Even if a bright star is shining right next to a black hole, you cannot see the black hole. Instead of reflecting the light as other objects do, the black hole just swallows the starlight forever.
I think the correct answer from the choices listed above is option A. A property of the stem of a dicot plant is that the ground tissue is differentiated into pith and cortex. Vascular bundles are not arranged sporadically instead arranged in a ring. Also, cambium does exist between xylem and phloem.
The hormone Progesterone increases in the blood to a level that causes lh to be released from the anterior pituitary.]
What is transported is the water in the currents. Like the water in the currents is moving in a direction, another thing that is transported is trash and other such stuff that gets caught in the current.
This is more of a personal question about how well you know yourself, no one can answer this for you.