Final answer:
Magmas and igneous rocks form at convergent plate boundaries, divergent plate boundaries, continental rifts, and hot spots, with the correct answer to the presented question being 'all of the above'.
Step-by-step explanation:
Magmas and igneous rocks typically form in different tectonic settings, which include convergent plate boundaries, where the subduction process can create magmas through the addition of water lowering the mantle's melting point. They also form at divergent plate boundaries, like mid-ocean ridges, where decompression melting occurs due to the pulling apart of tectonic plates. Additionally, magmas can form at continental rifts, where the crust is being stretched and thinned, at hot spots such as Hawaii and Yellowstone, which are caused by plumes of hot material rising from deep within the Earth's mantle.
The correct answer to the question is all of the above, as magmas and igneous rocks can indeed form at convergent plate boundaries, divergent plate boundaries, continental rifts, and hot spots.