help please!!!!!! Most Swiss starlings produce four to five eggs in each clutch. Starlings producing more than this have reduced fitness. which of the following statements best explains this situation?

A. The starling parents do not care for their young, reducing their fitness
B. The ecosystem can only support two offspring, reducing the fitness of both populations
C. The population of starlings have limited resources to care for their young
D. The starlings have fewer habits options and fewer offspring, reducing their fitness