Ajapanese manufacturer sells recorders to a u. s. retailing firm. the manufacturer is to receive $1 million (u. s. dollars) in 90 days. how can he best protect himself against a decline in the dollar?
a) sell yen calls. b) sell yen puts. c) buy yen puts. d) buy yen calls.

option D

Explanation:

the correct answer is option D

Japanese manufacturer sells recorder to U S retailing firm and the manufacturer is to receive $1 million in 90 days but the dollars start declining to protect himself he should Buy yen Calls.

As the dollar value decreases the manufacture will have to face loss and to overcome his loss the best way he can do is Buy yen calls.

i would say b. research typically uses a variety of sources

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals