Which of the Following Statements About Plant Macronutrients Is/are True

Which of the following statements about plant macronutrients is/are true? Check all that apply.

A) They approach or exceed 1% of a healthy plant's dry weight.
B) They reduce the need for CO₂ during photosynthesis.
C) A deficiency in any one can have severe effects on a plant's growth.
D) They can have important implications for human nutrition.
E) The ability of the plants to take up minerals is affected by soil pH.