Imagine that you are paraphrasing a passage from two articles- one published in 2002 titled "unconscious perception in formation of love attitudes" by m. mutchnick and r. peltier and another article by m. simpson, b. simpson, and b. grant published in 1999 and titled "the origins of love: an evolutionary perspective". which of the following in-text citations would be correct according to apa style?

a) two recent studies have investigated how love develops (simpson, m., simpson, b., & grant, b., 1999;
b) two recent studies have investigated how love develops (mutchnick, m. & peltier, r., 2002; simpson, m
c) two recent studies have investigated how love develops (mutchnick, & peltier 2002; simpson, simpson
d) two recent studies have investigated how love develops (simpson, simpson, & grant, 1999; mutchnic