I think it is b. Most beautiful, as c and d don't make sense. A is a possibility, but I'm pretty sure it is b. Most beautiful.
Expla The answer is encourage
A recent poll of 91 historians of US presidents gave a rating of the top 44 presidents who have alternately ruled the United States from George Washington to Barack Obama.
This is a ranking of the five best presidents of the United States of America, according to the opinion of the historians participating in the poll:
1st place: Abraham Lincoln (1865-1861)
In sonnet 29 shakesphere is all about toying with the differences between spiritual wealth and economic wealth