Answer:
d. all of the above
Step-by-step explanation:
Agricultural practices for the same crops have many differences around the world. These differences are mainly established by the topography and different climatic conditions between the different regions around the world. For example, rice planted in tropical regions has different agricultural practices than rice planted in a temperate region. Likewise, the manioc planted in a steep region has different agricultural practices than the manioc planted in flat regions.
Another very important factor to promote the variety of agricultural practices is the regional traditions that, in agricultural regions, are very linked to the management of crops.