Our short memory can only hold about seven bits of information at a time. This means you should: a,use words with six letters or less b,use sentences of six letters or less c,never write a document with more than seven points d,group large amounts of information into three to seven chunks

The correct answer is d, group large amounts of information into three to seven chunks.

Our short-term memory, also known as working memory, has limited capacity and can typically hold around seven chunks of information at a time. A chunk refers to a meaningful unit of information, which can be a word, phrase, or even a larger concept.

To effectively make use of our short-term memory, it is recommended to group larger amounts of information into three to seven chunks. By doing so, we can make the information more manageable and easier to remember. For example, if you encounter a long list of items to remember, try to divide it into smaller groups of three to seven items, which will make it easier for your short-term memory to process and retain the information.

Therefore, option d is the most appropriate answer.