Single/multi-choice problem: Which of the following solutions is better for the following goal:
blanch spinach

Options are: I. bring a large pot of water to a rolling boil. Add the spinach stems first and then push the leaves down to submerge them in the water. Blanch until the stems are no longer rigid (about 40 seconds) and then drain the spinach and dump into a bowl of cold water to stop the cooking immediately. II. bring a large pot of water to a rolling boil. Add the spinach stems first and then push the leaves down to submerge them in the water. Blanch until the stems are no longer rigid (about 40 seconds) and then drain the spinach and dump into a bowl of hot water to stop the cooking immediately.
I.