The correct answer is (A) 1. Amorous byplay; flirtation; brief romance entered into flirtatiously. 2. Frivolous use of time; dawdling; procrastination; delay.

Examples of use:

• A survey of American men concluded that, when faced with a choice, American men would prefer to receive money than to be involved in a dalliance.
  
  
• Their dalliance eventually led the foreman to cancel the work for that day and reschedule it for another.