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Which of the following is scala code thats reads data from HDFS file using spark-shell?

val mydata = sparkContext.readTextFile("/data/mr/wordcount/input/")
val mydata = HDFS.textFile("/data/mr/wordcount/input/")
var mydata = sc.textFile("/data/mr/wordcount/input/")
mydata = sc.textFile("/data/mr/wordcount/input/")
None, It is not possible using spark-shell

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