Give a very short answer to the question given below.
 
We have four resistors A, B, C and D of resistance \(2\ \Omega\), \(6\ \Omega\) ,\(6 \Omega\) and \(7\ \Omega\) respectively. Find out the lowest resistance which can be obtained by combining these four resistors.
 
For series:
 
Total resistance, \(R_s\ =\)  ________ \(\Omega\) 
 
For parallel:
 
Total resistance, \(R_p\ =\) _________  \(\Omega\)
 
The resistance will be lowest if all the resistors are connected in