Answer
The $\Delta$ baryon has B=1 and a spin of 3/2, so it is made of three quarks (with no antiquarks).
Work Step by Step
Table 32-3 shows that quarks have charge of +2/3 or -1/3. Three quarks can have a charge of 2, 1, 0, or -1 but cannot have a charge state of -2.