What is the significance of the stupas and monasteries asoka caused to be built throughout india? a. they were protested by many hindus. b. they were public works that brought jobs to many. c. they honored ancestors that brought joy to indians. d. they spread buddhism.

The answer is "They helped spread Buddhism".

Stupa is a term used for Buddhist memorial landmark which usually contain holy relics related with the Buddha or other revered people. As indicated by Buddhist legend, especially the Mahaparinirvana, the remains of the Buddha had been shared among eight nations following his demise. Ashoka tried to reclaim the relics and distribute them among 84,000 Stupas built for religious purposes which greatly helped Buddhism spread in India.

Someone might say that as they hold the relics of elders option "C" might be applicable but that does not properly fit the description and purpose of a "Stupa" which primarily were built to hold the relics of Buddha himself who brought "salvation" or "Nirvana" for people not only in India.  

The significance of the stupas and monasteries Asoka caused to be built throughout India is they helped spread Buddhism.

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)