The Microsoft Excel file format (.xlsx) is one of the most common formats used to store datasets. R programming supports the importation of data from several formats, one of which is an Excel file. The following table shows the data of an Excel workbook's third sheet.

Alpha	125.5	0
Beta	235.6	1
Beta	212.03	0
Beta	211.30	0
Alpha	265.46	1

Which of the following codes will read the above data from the third sheet of testresults.xlsx into an R dataframe?

Group of answer choices

A. Openxlsx::read.xlsx("testresults.xlsx",sheet=3,colNames=FALSE)

B. Xlsx::read.xlsx("testresults.xlsx",sheetIndex=3,header=FALSE)

C. XLConnect::readWorksheetFromFile("testresults.xlsx",sheet=3,header=FALSE)

D. All of the above statements are correct.