Question $4(2$ points$)$

Four wires meet at a junction. The first carries $4$A into the junction, the second carries $5$A out of the junction, and the third carries $2$A out of the junction. The fourth carries:

$7$ A out of the junction

$7$ A into the junction

$3$ A out of the junction

$3$ A into the junction

$1$ A into the junction