<prompt>  Lactobacilli are numerous in carious lesions because theya They are the main causative agentb can produce insoluble extracellular polysaccharidesc can attach to smooth enamel surfacesd are more violently cariogenic for animals than Streptococcus mutanse are secondary invadersabcd are false e is trueabc are false d e are trueab are false c d e are truea is false bcde are true 