The correct answer is D) All of the above.
Agricultural extension services, farmer cooperatives, and agricultural universities all play a crucial role in information dissemination related to horticulture.
Agricultural extension services are government agencies that provide technical assistance and training to farmers. They often have a network of field agents who visit farmers in their communities to provide information on new technologies, best practices, and government programs.
Farmer cooperatives are organizations of farmers that work together to improve their economic well-being. They often provide services such as marketing, purchasing, and processing of agricultural products. They can also play a role in information dissemination by providing training and workshops for farmers.
Agricultural universities are institutions of higher education that offer programs in agriculture and related fields. They conduct research on agricultural issues and train future agricultural professionals. They can also play a role in information dissemination by publishing research findings and offering extension programs.
All of these organizations play an important role in ensuring that farmers have access to the information they need to make informed decisions about their farming practices.