Which of the following is NOT one of the main categories of managerial roles? A Decisional roles B Interpersonal roles
C Informational roles D Inspirational roles

Doogan corporation makes a product with the following standard costs: standard quantity or hours standard price or rate direct materials 2.0 grams $ 7.00 per gram direct labor 1.6 hours $ 12.00 per hour variable overhead 1.6 hours $ 6.00 per hour the company produced 5,000 units in january using 10,340 grams of direct material and 2,320 direct labor-hours. during the month, the company purchased 10,910 grams of the direct material at $7.30 per gram. the actual direct labor rate was $12.85 per hour and the actual variable overhead rate was $5.80 per hour. the company applies variable overhead on the basis of direct labor-hours. the direct materials purchases variance is computed when the materials are purchased. the materials quantity variance for january is:

R& m chatelaine is one of the largest tax-preparation firms in the united states. it wants to acquire the tax experts, a smaller rival. after the merger, chatelaine will be one of the two largest income-tax preparers in the u.s. market. what should chatelaine include in its acquisition plans? it should refocus its attention from the national to the international market. in addition to acquiring the tax experts, it should also determine the best way to drive independent "mom and pop" tax preparers out of business. chatelaine will need to explain to the federal trade commission how the acquisition will not result in an increase in prices for consumers. chatelaine should enter a price-based competition with its other major competitor to force it out of business and become a monopoly.

Which external factor has enabled addition of special effects in advertisements and tracking of responses of customers over websites?