In the 2021 report, BP provided a description of R/P ratio in its footnotes. Which of the following could impact the R/P ratio in a given year? Select all that are true. Use this document: https://www.bp.com/content/dam/bp/business-sites/en/global/corporate/pdfs/energy-economics/statistical-review/bp-stats-review-2021-full-report.pdf Group of answer choices The amount of coal produced that year changed. The price of coal changed. The proved reserves of coal changed