Final answer:
The correct answer is B) Stronger, Slower, as a compound that binds more strongly to the stationary phase in TLC moves up the plate more slowly due to greater affinity.
Step-by-step explanation:
The question relates to the principles of Thin Layer Chromatography (TLC), which is a method for analyzing the composition of a mixture. The correct answer to the question 'The ……… tightly a compound binds to the stationary adsorbent, the ……… slowly it moves on the TLC plate.' is B) Stronger, Slower. When a compound binds more strongly to the stationary phase, it has a higher affinity for the adsorbent and therefore moves up the TLC plate at a slower pace. This is because the interactions between the compound and the stationary phase slow down its progress compared to those compounds that bind more weakly.