The graph below shows the number of birds with a given beak depth in a certain location. Data was collected before (the white columns) and after (the black columns) a drought. For example, before the drought, about 30 birds with a beak depth of 8.3 mm were counted. Which three statements below are best supported by the data in the graph? ​

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above