for lossless, after decomposition of relation into 2, if there is any common attribute in the decomposed relations and that attribute is a key in any of the relation then it is lossless - (any decomposition should have a common attribute(s) which is a key in one of the relation)
here no attributes are common in R1 and R2
so this one is not lossless.
for dependency preserving= if we are able to derive the original dependency from the dependencies of the splited schemas then it is dependency preserving.
here from R1===A->B and from R2====c->D can be derived..
so it is DP
ANS=OPTION A