The $n$-th term of a sequence is $u_n = \dfrac{1}{n}$ and $u_n < 10^{-4}$. Then —

1. $n < 10^{8}$
2. $n < 10^{4}$
3. $n > 10^{4}$

• aiii
• bi and iii
• cii and iii
• di, ii and iii