GMOs- Golden Rice

GMOs are genetically modified organisms. Biotechnologists have studied certain organisms and made an effort to modify their genetics in order to alter certaing characterists among it. ut why alter its genetics? Altering the genetics of food or crops for example can produce more of it or enhance its nutrients. For example golden rice is an example of a gmo. This rice has been made more nutritous by inserting a gene in its genetics that gives it the ability to produce beta-carotene ( something like a vitamin). It also makes it that yellowy color. Making the rice more nutritious is beneficially to humans because the impoverished can get more nurishment out of this rice.

See the difference in color

Questions:
How do they mass produce the golden rice?
Is it really a good thing to have food genetically modified?
Could genetically modified foods and crops possibly solve world hunger?
If rice can be genetically modified to be more nutritious can candy be?