The correct answer is (a).
The Transfer of Property (Amendment) Act 2003 amended Section 107 of the Transfer of Property Act, 1882. Section 107 of the Transfer of Property Act, 1882 deals with the transfer of property by a person who is not the owner. The amendment to Section 107 of the Transfer of Property Act, 1882 makes it clear that a person who is not the owner of property can transfer the property if he has the authority to do so.
The other options are incorrect. Section 106 of the Transfer of Property Act, 1882 deals with the transfer of property by a person who is not competent to contract. Section 108 of the Transfer of Property Act, 1882 deals with the transfer of property by a person who is not the absolute owner. Section 100 of the Transfer of Property Act, 1882 deals with the general principles of transfer of property.