1. A student fitted the required apparatus to collect carbondioxide in the gas jars.2. The student took out some substance from the bottle labelled calcium carbonate and put it in the woulfe's bottle.3. Then the student poured some from the bottle labelled dilute hydrochloric acid on the calcium carbonate contained in the woulfe's bottle.4. considering the above mentioned facts maximum how many hypotheses are possible relating to the causes of non-collection of the gas in the gas jar?

• A. One
• B. Two
• C. Three
• D. Four