In a survey conducted at a primary school, where 1000 students responded, 55% of the respondents indicated that they sleep more than 8 hours every day. Among those who sleep more than 8 hours every day, 70% wear spectacles. We also know that 50% of the respondents wear spectacles. What is the percentage (computed to 3 significant figures) of respondents who wear spectacles among those who sleep at most 8 hours every day? MCQ

a) It is not possible to calculate the exact value but the percentage is more than 50%.

b) 25.6%

c) 29.9%

d) It is not possible to calculate the exact value but the percentage is at most than 50%.