Rearrange the following words/phrases into meaningful sentences :
(a) a holy/the Indians/the Ganga/regard/to be/river
(b) glacier/the/of/the Ganga/the Gangotri/source/is in
(c) to form/at/Prayag/It is/the Saraswati and/joined by/the Yamuna/the Triveni Sangam
(d) provides/to/of/it/water/millions/people