Fill in the blank by choosing the correct option to complete the notice on a school notice board.
We are pleased to announce that our Annual Sports Day............ on 30th April, 2025 at the school playground from 9 a.m. to 3 p.m.
Select the option that identifies the error and supplies the correction for the following line taken from an article about growing obesity.
Obesity in teenage children is a major concern between parents today.

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?