The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where $$l$$ = Number of links and j = Number of binary joints)
A. n = ($$l$$ - 1) - j
B. n = 2($$l$$ - 1) - 2j
C. n = 3($$l$$ - 1) - 2j
D. n = 4($$l$$ - 1) - 3j
Answer: Option C
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