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Parsing a text file into a struct in Go

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In the Go language, suppose we have a structured text file with information we want to parse into a custom data structure. Which of the following methods could be used to efficiently read and parse this file given that you've defined a 'parseLine' function that takes in a line of text and returns a struct? Consider the following code:

type Data struct {
  Field1 string
  Field2 int
}

func parseLine(line string) Data {
  // Implementation left as an exercise...
}

func main() {
  file, err := os.Open('data.txt')
  if err != nil {
    log.Fatal(err)
  }
  defer file.Close()

  var data []Data

  // What code goes here to fill 'data'?
}

Select one option from the list

file's ReadLines method along with append() method to add parsed struct to 'data'

bufio package's Scanner struct along with append() method to add parsed struct to 'data'

os package's Read function along with append() method to add parsed struct to 'data'

bufio package's Reader along with append() method to add parsed struct to 'data'

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