Right answer is (a) flemish bond
To explain: This bond has one stretcher between headers, with the headers centred over the stretchers in the course below.
Where a course begins with a quoin stretcher, the course will ordinarily terminate with a quoin stretcher at the other end. The next course up will begin with a quoin header. For the course’s second brick, a queen closer is laid, generating the lap of the bond. The third brick along is a stretcher, and is—on account of the lap—centred above the header below.