Hernandez states children who eat at least one meal a day with the family unit are shown to have more stable relationships in adolescence and adulthood

which of the following reflects the proper punctuation of the above sentence?

a. hernandez states, “children who eat at least one meal a day with the family unit are shown to have more stable relationships in adolescence and adulthood.”

b. hernandez states: “children who eat at least one meal a day with the family unit are shown to have more stable relationships in adolescence and adulthood? ”

c.“hernandez states,” children who eat at least one meal a day with the family unit are shown to have more stable relationships in adolescence and adulthood.”

d.“hernandez states . . children who eat at least one meal a day with the family unit are shown to have more stable relationships in adolescence and adulthood. .” .