Select the most appropriate option to substitute the underlined segment in the given sentence. If no substitution is required, select ‘No improvement’ as your answer.
One advantage of the introduction of carriages were that it created a demand of a lightest and quicker sort of horse.
1
was that it created a demand for a lighter
2
were that it created a demand for a light
3
were that it has created a demand of a lighter
4
No improvement