Answer:
The last option
Step-by-step explanation:
There are 42 species in the sample
the proportions are:
frogs = 18/42 = 3/7
lizards = 18/42 = 3/7
worms = 6/42 = 1/7
The number of frogs and lizards is the same and exceeds that of worms
The only option that meets these proportions is the last
Hope this helps
