Task: Question Answering
Input (English): Question: Relating components of human milk and immune system, it is FALSE that: 
 Options:  <1> Lactoferrin protects against infections due to its ability to bind iron. <2> The casein peptides have antimicrobial and immunostimulant activity. <3> Cytokines modulate the immune system in childhood. <4> Complex oligosaccharides can be false receptors for bacteria in the intestine. <5> Lysozyme degrades the cell walls of gram-negative organisms.
Output (English): 5