$\mathrm{A}{\mathrm{s}}_2{\mathrm{S}}_3$ and $\mathrm{T}\mathrm{i}{\mathrm{O}}_2$ sol are examples of

• A

  Negativity charge sols
• B

  Positively charged sols
• C

  Positively and negatively charged sols respectively
• Correct answer
  D

  Negatively and positively charged sols respectively

Hence, the correct answer is option: 'D'.