asp.net - what is the best way to declare string or any other data type in c# -

which best memory efficient/efficient way declare string , other data type variables in c#!?

option 1

string strassociateid = context.request.querystring["xxxxxx"],                  strassociatename = context.request.querystring["xxxxx"],                 strphoto = context.request.querystring["xxxxx"],                 strdescription = context.request.querystring["xxxxx"]; 

or

option 2

string strassociateid = context.request.querystring["xxxxx"]; string strassociatename = context.request.querystring["xxxxx"]; string strphoto = context.request.querystring["xxxxx"]; string strdescription = context.request.querystring["xxxxx"]; 

or other way!?

which best way follow on longer run?! or both have same efficiency!?

downvoters pls comment can correct.

i trying find best way , question not there in stackoverflow before!!

this not lead discussion, , question answerable , clear

the difference between options, readability. there no performance difference, , generate exact same il.

for readability, choose option 2.