Morphine, a potent opioid pain reliever, is contraindicated in all of the following conditions except which one?

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Heart failure affecting the left ventricleAsthma involving the bronchiDifficulty in bowel movementsBoth heart failure and constipationNone of the above

Explanation

Morphine should be avoided in patients with left ventricular failure and bronchial asthma due to potential adverse effects. However, constipation is not a contraindication but rather a common side effect. Therefore, morphine is contraindicated in conditions A and B, but not in C alone.