What will be the content of K after executing the following code?

for (i in 1:16) K[i] = mod(i,4)

1.

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

0

2.

0

1

2

3

0

1

2

3

0

1

2

3

0

1

2

3

3.

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

4.

0

2

3

0

2

3

0

2

3

0

2

3

0

3

0