While teaching ‘shapes, a teacher can plan a trip to historical places, as- 
I. it needs to provide leisure time as most of the syllabus has been completed in time 
II. it would be an opportunity to improve communication skill 
III. shapes are an integral part of every architecture and such trips encourage connections across disciplines 
IV. field trips are recommended by Education Board, so much be organized 
Select the correct answer using the code given below.