The minister avoided any mention of the issue of women’s reservation in the private sector. He was accused of the-------------------------- issue.

The correct option is skirting.

Step-by-step Explanation:

1. Analyze the Context:
The first sentence states that "The minister avoided any mention of the issue...". This indicates that the minister deliberately chose not to address or deal with the topic directly.

2. Define the Correct Term:
The verb "skirt" means to go along or around the edge of something. Figuratively, "to skirt an issue" means to avoid discussing, dealing with, or answering it directly. This fits the context perfectly, as the minister was accused of avoiding the issue.

3. Examine the Other Options:
• Collaring: Means to seize, arrest, or stop someone to talk to them. It does not mean to avoid a topic.
• Tying: Means to bind, fasten, or connect things together. It is unrelated to avoiding an issue.
• Belting: Means to hit someone with a belt, or to sing or play a song loudly. It does not make sense in this context.

Therefore, skirting is the only word that logically and grammatically completes the sentence.