Which of the following statement is false for traits?

What's the output?

Which one is false about Monads?

For the code below, which statement is True?

Traits are used to define _ types by specifying the signature of the supported __?

Which statement is not correct for trait Iterator?

Statement that is not correct for parallel collections?

If Seq is a trait then why is var x = Seq(1, 2, 3) legal?

In which case there is only a small speed penalty?

Scala provides __ versions of all of its collection types. These versions cannot be changed after they are initialized. You should use them whenever you know a collection should not be changed, so that you do not accidentally change it later?

Correct statement which describes the code?