Some species are more likely to perish but, the most healthy frogs will most likely evolve and find something else to eat.
The answer to your question is c!
The major components of these fluids include water and solutes. The solute is mostly comprised of electrolytes: inorganic compounds that dissociate into ions. Electrolytes include cations (positively charged atoms – sodium, potassium, calcium, magnesium, carbonate) and anions (negatively charged atoms – chloride, sulphide, phosphate, bicarbonate).