Among the following which one can have a meso form?

Among the following which one can have a meso form?
  1. $\mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}(\mathrm{Cl}) \mathrm{C}_2 \mathrm{H}_5$
  2. $\mathrm{CH}_3 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_3$
  3. $\mathrm{C}_2 \mathrm{H}_5 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_3$
  4. $\mathrm{HOCH}_2 \mathrm{CH}(\mathrm{Cl}) \mathrm{CH}_3$.

Asked in: NEET 2020 (Phase 2)

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