Answer is A, the spread of Sanskrit language
Representatives maintain a positive relationship with constituents by:
I) staying in constant communication with the constituents i.e. use of letters, blogs, media appearances and websites
ii) Having their staff to carry out casework, or the staff helping to resolve problems which the constituents have encountered with the national government, and request for favours such as tours of government offices and setting up meetings.
iii) Voting for motions that would keep their constituents happy by serving the interests and concerns of the constituents.
5000-3500 BCE a long with the development of writing
