Find a Formula for A_n ?for the Arithmetic Sequence $\frac { 6 } { 7 }$

Find a formula for a_n ?for the arithmetic sequence. ?
A₁ = 0,d = - $\frac { 6 } { 7 }$ ?

A) a_n ?= $\frac { 6 } { 7 }$ n - $\frac { 6 } { 7 }$
B) a_n ?= - $\frac { 7 } { 6 }$ n - $\frac { 7 } { 6 }$
C) a_n ?= - $\frac { 6 } { 7 }$ n + $\frac { 6 } { 7 }$
D) a_n ?= $\frac { 6 } { 7 }$ n + $\frac { 6 } { 7 }$
E) a_n ?= - $\frac { 7 } { 6 }$ n + $\frac { 7 } { 6 }$

Correct Answer:

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