Washington, March 5. - The hearings in opposition to the anti-option bilí were begun by the house agricultural commltteo Wednesday. Those who appeared included Mr. Labouisse of the New Orleans Cotcon exchango and Mr. Henry Penze and others oí the New York Cotton exchange. Their argument was to the effect that dealing in oplion and futures was not harmful to thu cotton producers; that on the contrary it tended to advance tho prices of their staple and to keep the market steady. If the bill were enacted into law it would, the gentlemen asserted, practically kill their business and rosult in consequent harm to the producers.