Paragraph: There are five students $S_1, S_2, S_3, S_4$ and $S_5$ in a music class and for them there are five seats $R_1, R_2, R_3, R_4$ and $R_5$ arranged in a row, where initially the seat $R_i$ is allotted to the student $S_i, i = \mathrm{1,2},\mathrm{3,4},5.$ But, on the examination day, the five students are randomly allotted the five seats
Question : For $i = 1,2,3,4$ Let $T_i$ denote the event that the students $S_i$ and $S_{i+1}$ do NOT sit adjacent to each other on the day of the examination. Then, the probability of the event $T_1\cap T_2\cap T_3\cap T_4$ is

• A

  $\frac{1}{15}$
• B

  $\frac{1}{10}$
• Correct answer
  C

  $\frac{7}{60}$
• D

  $\frac{1}{5}$

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