Which of the following scenarios describes a situation in which separate property has become commingled? a. A and B, a married couple in California, keep separate bank accounts. Each pays certain of the couple's agreed-upon expenses. b. C and D, a married couple in California, purchase a house using funds from their joint bank account. They make mortgage payments and pay for household expenses using this account. c. E and F, a married couple in California, each inherits money from their respective family members. Both deposit the money in their joint account. They purchase a house from the account and pay all their household expenses from the account. d. G and H, a married couple in California, maintain separate bank accounts but regularly transfer money between their accounts for shared expenses such as rent, groceries, and utility bills