Binding energy per nucleonEasy

Binding Energy per Nucleon

Given below are two statements. One is labelled as Assertion (A) and the other is labelled as
Reason (R).
Assertion (A) : The binding energy per nucleon is found to be practically independent of the atomic number A, for nuclei with mass numbers between 30 and 170.
Reason (R) : Nuclear force is long range.
In the light of the above statements, choose the correct answer from the options given below :

SELECT ONE OPTION