. Which of the following is used to avoid bias in a clinical trial A) Data manipulation
B) Unfair prejudice
C) Personal interest
D) Double-blind testing

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Tamarind can be grown on homesteads, plantations, and wasteland or as a forest tree. methods of propagating tamarind there are two methods of propagating tamarind trees: seed propagation and vegetative propagation. seed propagation: it involves the collection, preparation and direct planting of the seed.answer from google full credit to google.