the agricultural revolution of the 18th century... (multipe choice)?

Question

a. depended on the emergence of the open field system
b. occurred despite the absence of new types of crops
c. was best suited to large farmers who could make use of new agricultural techniques
d. was resisted by conservative aristocrats lik Jethro Tull

Answer 1

I would guess (a). Before this, the 'closure laws' restricted farming methods. Once these were eliminated, farming could occur on a larger scale. More was produced and allowed some to leave the agrarian existence. Time could be spent on developing tools so still more could be produced. Plows, harrows and other farming implements were developed.

Answer 2

I choose this answer through elimination of the others.
Jethro Tull was an innovator of agriculture in the early 18th century.
All kinds of new crops were exchanged between the new and old world.
The open field system was in use through out much of the middle ages.

My answer:
c. was best suited to large farmers who could make use of new agricultural techniques