The maximum tax rate on estates and gifts:

A. is gradually declining.

B. is gradually increasing.

D. has increased sharply

To find the answer to this question, we can refer to official sources such as government websites, tax legislation, or reputable news sources.

One such official source is the Internal Revenue Service (IRS) in the United States. According to the IRS, the maximum tax rate on estates and gifts has changed over time but has generally followed a pattern of gradual increase.

Historically, the maximum tax rate on estates and gifts in the US has fluctuated. In recent years, it has increased from 35% to 40% under the Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 2010. However, it is important to note that tax legislation can change, so checking the most up-to-date information from official sources is necessary for accurate information.

Therefore, based on the available information as of now, the correct answer would be:

B. The maximum tax rate on estates and gifts is gradually increasing.

The maximum tax rate on estates and gifts has increased sharply.