I would say it's A and C, because it's good to use key words, but you always wanna keep your search general, with key words, hope this helped :)
Answer:
cadmium (Cd) : transition metal
vanadium (V) : transition metal
xenon (Xe) : noble gas
iodine (I) : halogen
potassium (K) : alkali metal
strontium (Sr) : alkaline earth metal
Explanation:
yeahhhh
Answer:
because it relies on the natural instincts of fish