---We've spent too much money recently.

---Well，it isn't surprising. Our friends and relatives ______ around all the time.

A．are coming

B．had come

C．were coming

D．have been coming

下列说法正确的是（）。

A.法律、行政法规、地方性法规、自治条例和单行条例、规章不溯及既往，但为了更好地保护公民、法人和其他组织的权利和利益而作的特别规定除外

B.法律、行政法规、地方性法规、自治条例和单行条例、规章一律不溯及既往

C.法律、行政法规、地方性法规溯及既往，自治条例和单行条例、规章不溯及既往

D.法律、行政法规、地方性法规不溯及既往，自治条例和单行条例、规章溯及既往