(c) According to the question, the given information can be drawn as.
(a) From the above diagram, Sheeba is daughter of Mac. So, option (a) eliminated. (b) Teena and Tim are married couple. So, option (b) is eliminated. (c) Sheeba in niece of tim, so option (c) is right. (d) Sheeba is daughter of mac. So, option (d) eliminated.